Hydrogen peroxide therapy

1. What it was

Version followed: the North American "hyperoxygenation" / "bio-oxidative" use of hydrogen peroxide (H2O2) taken by mouth, infused into a vein, or used rectally and on the body, from the 1940s to the present, as described by Saul Green (1998), Barrie Cassileth (2009), the US Food and Drug Administration (2006), US poison centres, court and medical-board records, and a 2023 Polish forensic report. Hydrogen peroxide is also used in legitimate medicine, and those uses are separated out in section 4. This guide does not present hydrogen peroxide as a treatment for cancer or any other disease, and it contains no amounts, strengths for use, mixing or schedules.

What it is. An alternative-medicine practice in which a household and industrial oxidising chemical is taken internally to "oxygenate" the body. Cancer-medicine reviewers group it with ozone and "oxygenated" waters and pills under labels such as "oxygen therapies", "oxymedicine", "hyperoxygenation", "oxidative" or "bio-oxidative" therapy. Cassileth calls these "expensive, unproven, and harmful alternatives" and states that "there is no scientific evidence to support any of these claims". [source: Cassileth 2009; Green 1998]

Stated rationale, as promoters put it (attributed, not established).

Disease, especially cancer, is said to arise from too little oxygen in the tissues. Supposedly that causes "fermentation", poor "oxidative detoxification" and failed immune killing. Promoters summed this up as "cancer doesn't like oxygen", drawing on William F. Koch's 1919 toxin theory and a reinterpretation of Otto Warburg's observations on cancer-cell metabolism. [source: Green 1998]
Giving an oxygen-releasing chemical was said to "burn off" toxins and to kill cancer cells, bacteria and viruses through an "oxidative burst" that "boosts the immune system". [source: Green 1998; AP/Sun Journal 2005]
Physician proponents told reporters in 2004 that about 100,000 such infusions were given each year in the US. They promoted them for cancer, HIV/AIDS, multiple sclerosis (MS), lupus and asthma. [source: AP/Sun Journal 2005]
Reviewers reply that infusions release far too little oxygen to matter, that catalase in blood breaks the peroxide down, that studies found no germ-killing effect in blood, and that cancer does not arise from anaerobic metabolism. [source: Green 1998]

Who promoted it, where and when (as reliable sources name them).

Father Richard Willhelm (also spelled Wilhelm) promoted drinking peroxide from the 1940s onward, calling it "God's given immune system". From 1982 he and Walter Grotz spread the practice through travel and publications. The group ECHO, based in Naples, Florida, is linked to Willhelm. [source: Green 1998]
Charles Farr wrote an intravenous protocol in 1987, attributed to the International Bio-Oxidative Medicine Foundation in Dallas. The Associated Press later called him an "infusion guru" who helped a South Carolina physician treat a lupus patient. [source: Green 1998; AP/Sun Journal 2005]
Kurt Donsbach gave home-use instructions in a health-food newsletter. Ed McCabe, an ozone promoter, testified to a US Senate subcommittee in 1993. Books and newsletters by other authors and a water company also spread the practice. [source: Green 1998]
A US physician-author is widely associated with a popular book promoting peroxide as a "medical miracle" [uncertain: not verified]. A later self-published book, The One-Minute Cure, promotes ingestion for cancer [uncertain: not verified].
Physician clinics. In the 2000s some US licensed physicians offered peroxide infusions within "longevity", "integrative" or chronic-infection practices. Physicians in Missouri, North Carolina, Tennessee and South Carolina had their licences suspended or revoked, or faced board action, over intravenous peroxide. The Tennessee board cited "gross malpractice". [source: AP/Sun Journal 2005]
Europe. A 2023 forensic report from Poland describes combined intravenous infusions of DMSO and perhydrol (concentrated peroxide) as "popular at natural medicine clinics". Neither substance is approved as a medicine there. [source: Rzepczyk et al. 2023]
COVID-19 era. Clinics and social-media posts promoted inhaling nebulised "food grade" peroxide to prevent or treat COVID-19. In May 2020 the US Federal Trade Commission (FTC) warned a California clinic, Gordon Medical, to stop such claims. In 2021 the Asthma and Allergy Foundation of America warned that the practice was "concerning and dangerous". [source: FTC 2020; Respiratory Therapy 2021]

How it was sold. It was presented as natural, cheap and suppressed: a "God-given" substance the body already makes. It reached people through church and word-of-mouth networks, newsletters, health-food outlets and books, and later websites and social media. In clinics it was offered as a sophisticated "oxidative" infusion for chronic, frightening or poorly understood illness. High-strength product was sold as "food grade". The FDA named one such high-strength "food grade" product in its warning. Poison centres stress that "food grade" does not mean safe to swallow: it refers to industrial food-processing use, and the product can cause serious internal burns. [source: Green 1998; FDA 2006; Poison Control (poison.org); Tennessee Poison Center 2020]

2. What was actually done

The sequence below combines what courts, regulators and case reports describe. Administration is described only qualitatively.

1. How people came to it. Most people found it through a book, a newsletter, a church or community contact, a health-food store, a website or a social-media post. Others were referred to, or found, a physician offering "oxidative" or "longevity" medicine for an illness conventional care had not cured, such as MS, cancer, HIV/AIDS, lupus, asthma, emphysema or arthritis. [source: Green 1998; AP/Sun Journal 2005]

2. "Assessment" and selection.

At home, there was no assessment: people chose it for themselves or were given it by family members. In one poison-centre case, an older woman was given concentrated peroxide by her husband, who described himself as a homeopath. [source: Poison Control (poison.org)]
In the South Carolina clinic case, a civil complaint alleges a patient with MS was told her illness was caused by an unknown bacterium or virus, although the clinic's own laboratory tests identified none. In a separate medical-board motion, a married couple who allegedly paid more than $65,000 were said to have been treated for Lyme disease that did not exist. These are allegations, not findings. [source: Quackwatch summary of the 2004 complaint and board motion]

3. Consent. The same complaint alleges the therapy was given without informed consent and without disclosing its risks. It also alleges a pharmacy compounded the peroxide for intravenous use even though the approved label said "external use only". At home, "consent" usually meant enthusiasm built on testimonials, with no risk information. Regulators had to warn the public directly that ingestion can cause "serious harm or death". [source: Quackwatch 2004 complaint summary; FDA 2006]

4. Setting and staff.

At home: the person, or a relative or carer, gave the bought product, often in a regular routine. Some people kept the product in clear containers in the refrigerator. [source: Green 1998; CNN 2017 on Hatten et al.]
In clinics: licensed physicians, sometimes with outside "infusion" advisers, and compounding pharmacies gave courses of intravenous infusions in office settings. One physician said he had given up to 1,800 peroxide treatments, including to patients who travelled from Europe. [source: AP/Sun Journal 2005]

5. Component practices (named variants).

Drinking: high-strength ("food grade") peroxide taken in water or juice, and homemade peroxide "pills". [source: Green 1998; Cassileth 2009]
Intravenous infusion: peroxide dripped into a vein during clinic sessions, as repeated courses. [source: Green 1998; AP/Sun Journal 2005; Cassileth 2009]
IV combinations: peroxide infused alongside DMSO at European natural-medicine clinics. [source: Rzepczyk et al. 2023]
Rectal and vaginal: enemas, colonics and douches. [source: Green 1998; Cassileth 2009]
Skin: soaking baths, sprays, massage and gels. [source: Green 1998; Cassileth 2009]
Mouth: mouthwash, gargles and tooth brushing. [source: Green 1998]
Inhaling: nebulised peroxide for respiratory infections, including COVID-19 (2020 onward). [source: FTC 2020; Respiratory Therapy 2021]
Package regimes: peroxide combined with other unproven agents such as ozone, germanium sesquioxide, high-dose IV vitamin C, laetrile or supplements. [source: AP/Sun Journal 2005; FTC 2020; Quackwatch 2004 board-motion summary]

6. How "progress" was judged. By testimonials and reported feelings of improvement. One practitioner told reporters that patients in severe asthma attacks "visibly" improved during infusions. No validated measures or disease markers were used to confirm benefit. [source: AP/Sun Journal 2005; Green 1998]

7. How warning signs and non-response were handled. In the South Carolina case, the complaint alleges the patient developed abdominal pain and nausea after an infusion. Two days later she returned with bruising and bleeding, and the physician neither examined nor referred her. Emergency services were called the next day, and she died two days after that. [source: Quackwatch 2004 complaint summary] How promoters reframed non-response or side effects in general (for example, as "detox" reactions) is [uncertain: not verified].

3. How it caused harm

Mechanisms.

Oxygen release and gas embolism. Peroxide breaks down into water and oxygen gas, and stronger solutions release far more gas. The gas can swell the stomach and enter the bloodstream as bubbles that block vessels. Poison centres describe gas reaching the portal vein, the heart and the brain. Symptoms include difficulty breathing, chest pain, confusion, seizures and stroke. Gas in the chest cavity (pneumomediastinum) can also occur. Hyperbaric oxygen is recommended for gas embolism, and early treatment appears to work best. [source: Tennessee Poison Center 2020; Poison Control (poison.org); CNN 2017 on Hatten et al.]
Corrosive injury. Concentrated product burns the mouth, throat, stomach, eyes and skin. Swallowed, it can cause ulceration and bleeding from the gut. [source: FDA 2006; Poison Control (poison.org)]
Intravenous harms. Inflamed veins at the infusion site, gas embolism and potentially life-threatening allergic reactions (FDA). Destruction of red blood cells (acute haemolysis), kidney failure and convulsions (case reports and health experts). Severe bleeding disorder with multi-organ failure (the South Carolina autopsy findings). [source: FDA 2006; Cassileth 2009; AP/Sun Journal 2005; Quackwatch 2004 complaint summary]
Rectal and wound use. Ulcerative colitis, sepsis, gas embolism, partial rupture of the colon and cardiac arrest have been reported after enemas or colonic washes. Surgical emphysema (gas trapped under the skin) has followed mouthwash use. [source: Cassileth 2009; Green 1998]
Inhalation. Lung irritation and harm. [source: Respiratory Therapy 2021]
Indirect harms. Effective medical care delayed or abandoned while the illness progressed, large out-of-pocket costs, and false hope followed by grief and regret. [source: Cassileth 2009; Quackwatch 2004 board-motion summary; synthesis for the psychological consequences]

Documented deaths and serious injuries.

US poison-centre series (Hatten and colleagues, Annals of Emergency Medicine, 2016–17; [uncertain: publication year reported variously]): of 294 high-concentration ingestions reported over about ten years, about 13.9% involved suspected embolism, sometimes after only one or two mouthfuls. Twenty cases (6.8%) ended in lasting disability or death. Some exposures were deliberate "cleansing" or "detox" use; most were accidental, for example people mistaking a clear container of peroxide for water. [source: CNN 2017]
South Carolina, 2004. A woman with MS died after intravenous peroxide given by physician James Shortt at his West Columbia clinic, Health Dimensions. The coroner found massive internal bleeding and multi-organ failure, attributed death to the infusions and ruled it a homicide. The autopsy cited "iatrogenic infusion of hydrogen peroxide". A wrongful-death suit followed. Armed state and federal agents raided the clinic, and the state board sought an emergency licence suspension. A second infusion patient's death was also reported. In July 2006 Shortt was sentenced to a year and a day in federal prison for conspiracy to distribute steroids, a separate matter, and he faced further charges alleging that two patients had died from peroxide treatment. The outcome of those further charges is [uncertain: not verified]. [source: AP/Sun Journal 2005; Quackwatch 2004; WIS 2006]
Intravenous use in AIDS: a man in his fifties died of haemolytic anaemia and kidney failure after intravenous high-strength peroxide. [source: Cassileth 2009]
Oral high-strength use: three deaths from gas embolism and circulatory collapse, and two cases of cerebral embolism. [source: Cassileth 2009]
Older adult given peroxide by a spouse: she developed vomiting, breathing difficulty and gut bleeding, needed intensive care and died after about two weeks in hospital. [source: Poison Control (poison.org)]
Poland, 2023 report: a woman in her thirties receiving DMSO infusions at alternative-medicine sessions had nausea, loss of consciousness and cardiac and respiratory arrest. She died of multi-organ failure. A mistake in preparing the perhydrol solution meant she had also been given intravenous peroxide. The cause of death was acute cardiopulmonary failure from intravenous peroxide. [source: Rzepczyk et al. 2023]
The 1991 Journal of Emergency Nursing article blamed a cancer patient's death on intravenous peroxide, calling it "cancer quackery" [source: AP/Sun Journal 2005; original article uncertain: not verified].

Psychological sequelae [synthesis; no systematic data were found]: grief complicated by guilt in relatives who bought, gave or encouraged the product; regret and self-blame in survivors who delayed effective treatment; anger and betrayal toward practitioners; family splits between those who supported and those who opposed the choice; shame that stops people telling their doctors; and, after a high-profile death or prosecution, distress, loyalty conflicts or defensiveness among people who had believed in a practitioner.

Who was most at risk.

People with serious, chronic or incurable illness (cancer, MS, HIV/AIDS, lupus) who were looking for hope or control. [source: AP/Sun Journal 2005; Cassileth 2009]
Older adults given the product by relatives. [source: Poison Control (poison.org)]
Children and other household members, because high-strength product was stored in drink containers or refrigerators. [source: CNN 2017; Poison Control (poison.org)]
People with lung disease who inhaled it. [source: Respiratory Therapy 2021]
People who drank it as a "cleanse". [source: CNN 2017]
Anyone who received intravenous infusions. [source: FDA 2006]

4. Recognising it today

Names and labels to listen for. "Hydrogen peroxide therapy", "H2O2 therapy", "hyperoxygenation", "oxygen therapy" or "oxygen therapies" (used outside respiratory or hyperbaric medicine), "oxymedicine", "oxidative" or "bio-oxidative" therapy or infusions, "oxidative burst", "food-grade peroxide" (often with a high percentage strength on the label), "oxygen cleanse" or "detox", "perhydrol", and peroxide "drops" in water or juice. Peroxide combined with DMSO in an infusion. "Nebulising peroxide" for colds, COVID-19 or chest infections. Peroxide sold or mentioned together with ozone, "oxygenated" water or pills, germanium, chlorine dioxide or high-dose IV vitamin C. [source: Cassileth 2009; Green 1998; Rzepczyk et al. 2023; FTC 2020; AP/Sun Journal 2005]

Rationales and phrases that signal it (attributed to promoters):

"Cancer can't survive in oxygen" or "disease is oxygen starvation". [source: Green 1998]
"It's what your immune system makes anyway" or "God's given immune system". [source: Green 1998]
"It kills viruses and bacteria in the blood". [source: Green 1998; AP/Sun Journal 2005]
"Doctors won't tell you because it's cheap and can't be patented". [synthesis: a typical suppression narrative; not attributed to a named source]
"Food grade means it's pure enough to drink". [corrected by: Poison Control (poison.org); Tennessee Poison Center 2020]
A diagnosis of a hidden infection, "toxicity" or "oxygen deficiency" that ordinary tests do not confirm. [source: Quackwatch 2004 complaint summary]

Where it shows up now.

Social-media cures and challenge posts, including nebulising for respiratory illness. [source: Respiratory Therapy 2021]
Clinics offering IV "oxidative" or "longevity" drips. [source: AP/Sun Journal 2005; FTC 2020]
Natural-medicine infusion clinics in Europe. [source: Rzepczyk et al. 2023]
Self-published e-books and paid newsletters. [synthesis]
Cancer-cure forums and support groups. [synthesis]
"Cleanse" and "detox" programmes. [source: CNN 2017]
Within households: a high-strength bottle in the fridge or in an unlabelled clear container. [source: CNN 2017; Poison Control (poison.org)]

What clients may tell you, or what you may notice [synthesis]:

Frequent belching, nausea, stomach pain, vomiting, or mouth and throat soreness linked to a "routine".
Mention of a "protocol" with increasing drops.
Clinic visits for drips that are not named to their doctor.
Large spending on infusions.
New confusion, chest pain, breathlessness, weakness on one side or seizures. These are emergencies that call for an emergency response, not psychotherapy (see section 5). [source for symptoms: Poison Control (poison.org); Tennessee Poison Center 2020]

Red flags in a colleague's or service's practice.

Recommending, selling or referring to peroxide ingestion, infusion, inhalation or enemas.
Presenting it as a cancer, MS, HIV or infection treatment.
Telling clients to hide it from their doctor.
Diagnosing "infections" without supporting tests.
Taking commissions or fees from infusion clinics or product sellers.
Using testimonials as evidence.
Discouraging oncology or neurology follow-up.
Selling courses or certifications in "oxidative medicine" to clients.

The practitioner-specific red flags are [synthesis], informed by: AP/Sun Journal 2005; Quackwatch 2004; FTC 2020.

How legitimate uses differ.

Topical first-aid and household use. Low-strength peroxide is used on the skin and for cleaning. Poison centres advise using only household-strength product for household purposes and keeping all peroxide out of children's reach in its original opaque bottle. [source: Poison Control (poison.org)]
Medical oxygen and hyperbaric oxygen. These are prescribed medical treatments. Hyperbaric oxygen is itself the recommended treatment for peroxide gas embolism. They are unrelated to drinking or infusing peroxide. [source: Tennessee Poison Center 2020; CNN 2017; Cassileth 2009]
Regulated research. The UK KORTUC phase II trial, sponsored by the Institute of Cancer Research, tests a dilute peroxide gel injected into breast tumours as a radiation sensitiser. It is given alongside standard radiotherapy, under ultrasound guidance, with ethics approval (West of Scotland REC, 2020) and registration (NCT03946202). Participants are randomised against radiotherapy alone. This is experimental cancer research inside standard treatment. It does not support home or IV use, and a client citing it should be pointed to their oncologist. [source: HRA KORTUC phase II summary]
The body's own peroxide. The fact that cells produce peroxide in normal signalling does not mean that taking it in is beneficial. Research suggests cancer cells may themselves produce peroxide. [source: Healthline, citing Lennicke 2015 and others; secondary]

Ozone therapies, chlorine dioxide and colloidal silver share this rationale and marketing, and each has its own entry in this domain.

5. What to do instead and how to help those harmed

Recommended alternatives (by name).

For the underlying illness: evidence-based care from the client's treating team, such as oncology, neurology (MS), HIV medicine, rheumatology (lupus) or respiratory medicine. Specialist palliative care where illness is advanced. [source: Cassileth 2009 advises clinicians to steer patients away from questionable treatments and explain the dangers; ACS quoted in AP/Sun Journal 2005 and Cassileth 2009]
For people with cancer who want "something natural": integrative oncology as its professional societies describe it, complementary to standard treatment and never instead of it (see entry 172).
For the psychological needs that drew the person to it (hope, control, distrust, fear): psycho-oncology and health-psychology support; CBT or ACT for health anxiety; and approaches for somatic-symptom presentations (cross-reference Domain II). [synthesis]
After poisoning: emergency and poison-centre care. In the US the poison centre is 1-800-222-1222 or the webPOISONCONTROL tool. Hyperbaric oxygen is used for gas embolism and is a decision for the treating physicians. [source: Poison Control (poison.org); Tennessee Poison Center 2020]

The psychotherapist never performs, sells, recommends or advises on peroxide or on any medicine. Questions about stopping, starting or interactions go to the prescriber, pharmacist or poison centre. Professional anchors: APA Ethics Code (effective 2003, amended 2017), Standards 2.01 Boundaries of Competence, 3.06 Conflict of Interest, 3.08 Exploitative Relationships, 3.09 Cooperation with Other Professionals, 3.10 Informed Consent, 4.05 Disclosures and 1.05 Reporting Ethical Violations. [source: APA Ethics Code] Clinicians outside the US apply their own code and law [synthesis].

Unless another source is given, the interventions below are [synthesis] built from the harm record above and general psychotherapy practice.

5.1 Acute safety check (when use is current)

Purpose: to separate a medical emergency from a psychological conversation.
Steps:
1. If a client discloses current ingestion, infusion or inhalation, ask what symptoms they have now. Concerning symptoms include chest pain, breathlessness, confusion, weakness, seizure, vomiting blood or black stools, severe stomach pain or swelling. [source for symptoms: Poison Control (poison.org); Tennessee Poison Center 2020; Quackwatch 2004 complaint summary]
2. If any are present, or have appeared since a recent dose or infusion, call emergency services or direct the client to them now.
3. For a recent swallow without symptoms, connect the client to the poison centre and let them give the advice. Do not give first-aid or treatment advice yourself.
4. Document what was said and done.
5. Ask whether high-strength product is stored at home, especially near children or in drink containers. Advise that all peroxide should be stored as poison centres recommend (see 5.8).
Example language (illustrative): "Before we talk about why you chose this, I need to check you're safe right now. Since the last drink or drip, have you had any chest pain, trouble breathing, confusion or bleeding?" / "Those symptoms need a doctor today, not a therapy session. Let's call now. I'll stay on the line with you."
Watch for: minimising ("it's just detox"); a reluctance to go to hospital because of shame or fear of being judged; carers who administer it. It is working when the client accepts medical assessment and the household storage risk is dealt with.

5.2 Routine, non-judgemental enquiry and recording

Purpose: to make disclosure safe, since shame and expected disapproval keep use hidden from doctors.
Steps:
1. At intake and at reviews, ask every client with a serious or chronic illness what else they are using or considering, including drips, "oxygen" or "detox" products and things bought online.
2. Ask open questions about how they take it, who supplies it, cost, and whether their doctor knows. Record the answers neutrally in the client's own words.
3. Thank them for telling you before you say anything evaluative.
Example language (illustrative): "Many people with an illness like yours look into other treatments as well, so I ask everyone. Is there anything you're taking, drinking or having infused that your doctors might not know about?"
Watch for: vague answers ("some oxygen drops"), a sudden change of subject, or loyalty to a practitioner. It is working when the client brings updates spontaneously.

5.3 Exploring meaning, hopes and the explanatory model

Purpose: to understand what the practice offers the person: hope, control, purity, faith, belonging, distrust of medicine, or a way to avoid feared treatment. Without this, information will be heard as an attack.
Steps:
1. Elicit their explanation of the illness and of how peroxide is meant to help (for example, the "oxygen starvation" theory) in their own words.
2. Ask what they hope will happen, what they fear about conventional treatment, and who introduced them to it.
3. Reflect the needs underneath (control, being taken seriously, not wanting to suffer) separately from the method.
4. Note any religious framing respectfully. It was promoted as "God's given" [source: Green 1998]. Address the method, not the faith.
Example language (illustrative): "Help me understand how you see it working in your body." / "It sounds like what matters most is feeling that you're doing something, not just waiting."
Watch for: high-control group dynamics (cutting off sceptical family, exclusive "truth", pressure to recruit or buy). It is working when the client can name their needs apart from the product.

5.4 Autonomy-respecting decision support

Purpose: to help an adult with capacity make an informed decision that fits their values, without coercion and without the therapist advising on treatment.
Steps:
1. Ask permission before sharing information.
2. Share regulator and poison-centre statements as facts from those bodies, not as your opinion. The FDA warned that ingestion can cause "serious harm or death" and that high-strength product is dangerous even when handled as directed. Poison-centre data show embolism after only one or two mouthfuls. [source: FDA 2006; CNN 2017]
3. Invite the client to take every question about the illness and its treatment to their physician, and offer to help them prepare those questions.
4. Explore values and trade-offs: what they would want to have tried, and what they would regret.
5. Respect the decision of an adult with capacity, while keeping the door open and keeping safety (5.1) active.
6. If capacity is in doubt (delirium, brain involvement, severe depression), raise it with the medical team.
Example language (illustrative): "Would it be all right if I shared what the FDA and poison centres have said about it? You can decide what to do with it." / "Whatever you choose, I'm still here, and I'd like your doctor to know so they can keep you safe."
Watch for: the therapist sliding into persuasion or medical advice, or the client agreeing to placate you and then disengaging. It is working when the client discusses the choice openly with their doctor.

5.5 Coordination with physicians, oncology and palliative teams

Purpose: to make sure the people responsible for the client's medical care know about the use and can monitor for harm.
Steps:
1. Seek the client's consent to tell their physician or team, explaining why: monitoring and safety.
2. Share only what is necessary.
3. Without consent, disclose only where the law requires or permits it, for example to protect the client or others from serious harm. [source: APA Ethics Code 4.05]
4. Ask the team how they would like to be updated, and agree roles. The medical team handles treatment questions; you handle emotional processing and decision support. [source: APA Ethics Code 3.09]
5. When illness is advanced, support referral to palliative care, framed as adding comfort and support rather than "giving up".
Example language (illustrative): "I'd like to let your oncologist know you're using the drips, so they can check your blood and kidneys. Can we agree what I say?"
Watch for: splitting ("my therapist understands; the doctors don't"); a team that responds punitively, which drives use underground. It is working when the client stays engaged with medical care.

5.6 Family conflict

Purpose: to reduce coercive or polarised family dynamics around the choice.
Steps:
1. With consent, meet relatives. Map positions: the supporter, the opponent, the one who buys or gives the product.
2. Reframe all positions as care and fear.
3. Help the family separate the client's decision rights from relatives' wish to protect.
4. Agree concrete safety commitments, such as telling the doctor, safe storage and no administration to others.
5. Where one adult is giving peroxide to a dependent or impaired adult, treat it as a safeguarding concern (5.8). [source for the scenario: Poison Control (poison.org)]
Example language (illustrative): "Everyone in this room is trying to keep Mum alive. You disagree about how. Can we start from what each of you is most afraid of?"
Watch for: scapegoating, ultimatums, and relatives who supply the product secretly. It is working when communication continues despite disagreement.

5.7 Grief, regret and guilt after harm or death

Purpose: to support survivors and bereaved relatives through complicated grief, guilt over having supported or supplied the treatment, anger at practitioners, and regret over delayed treatment.
Steps:
1. Assess for prolonged grief, depression, PTSD after witnessing a medical emergency, and suicide risk, using standard risk-assessment practice.
2. Validate that decisions were made with the information and hope available then (hindsight bias).
3. Work with guilt and responsibility in a measured way, distinguishing intent from outcome and the person's share from the seller's or practitioner's.
4. Address anger and any wish for redress. Explain that legal, regulatory and board routes exist (5.10) and are the client's choice, while staying separate from any litigation role.
5. Address public exposure if the case was reported in the media.
Example language (illustrative): "You chose it because you loved her and wanted her to have a chance. Knowing what you know now hurts, but you didn't know it then."
Watch for: self-punishment, isolation, and the therapist's own anger at the practitioner leaking into the session. It is working when guilt becomes grief that can be borne.

5.8 Safeguarding (children and adults at risk)

Purpose: to protect people who cannot protect themselves.
Steps:
1. Treat any of the following as a safeguarding concern and follow your jurisdiction's procedures:
  - a child or adult who lacks capacity is given peroxide by mouth, by inhalation or rectally;
  - medical care is withheld in favour of peroxide;
  - high-strength product is stored in drink containers or within children's reach.
2. Poison centres advise storing all peroxide out of children's reach in original opaque bottles. [source: Poison Control (poison.org)]
3. Address assent and consent: children cannot consent to harmful procedures, and parental belief does not override a child's medical needs. [synthesis]
4. Consult a supervisor, document, and make the referral.
Example language (illustrative): "I'm concerned for your son's safety. Because I'm worried, I have a duty to talk to the child-protection service. I'd rather do that with you than behind your back."
Watch for: relatives who minimise ("just a few drops"), and the therapist's reluctance to damage the alliance. It is working when the child or adult is assessed medically and the supply stops.

5.9 Financial harm and exploitation

Purpose: to address money spent on infusions, products and courses. One board motion alleged a couple paid more than $65,000. [source: Quackwatch 2004 board-motion summary]
Steps:
1. Ask about spending, debt and pressure to pay in advance.
2. Explore shame and the sunk-cost pressure to keep going.
3. Signpost consumer-protection, financial-counselling and legal advice.
4. Watch for exploitation of older or dependent adults.
5. Never sell or recommend products or courses yourself. [source: APA Ethics Code 3.06, 3.08]
Example language (illustrative): "Having already spent so much can make stopping feel like losing it all. Can we look at that pull separately from what you want next?"
Watch for: pressure from multi-level-marketing sellers or a group. It is working when spending decisions slow and become deliberate.

5.10 Reporting

Purpose: to get injuries, unsafe products and misleading promotion to the bodies that can act.
Steps (with consent, or within confidentiality law):
1. US product injuries: report adverse events to FDA MedWatch. Consumers use Form 3500B; health professionals use Form 3500, online or on paper. Reporting is voluntary. [source: FDA Form 3500 instructions]
2. US advertising: report cure claims to the FTC, which issued COVID-19 warning letters over nebulised peroxide claims. [source: FTC 2020]
3. Practitioners: report licensed practitioners who infuse or prescribe peroxide to their medical board. Boards have suspended and revoked licences. [source: AP/Sun Journal 2005]
4. Colleagues: address ethical violations by colleagues informally where appropriate, or report them. [source: APA Ethics Code 1.05]
5. Outside the US: report to the national medicines or product regulator, the advertising or consumer regulator and the professional regulator. [uncertain: not verified for each country]
Example language (illustrative): "What happened to you should be on record so others are warned. Would you like help filing a report?"
Watch for: fear of retaliation or of being judged. It is working when the client feels the report is theirs.

5.11 Therapist stance, scope and conflicts of interest

Purpose: to keep the work inside psychological competence.
Steps:
1. Stay curious rather than contemptuous.
2. Do not debate biochemistry; refer medical questions to medical professionals. [source: APA Ethics Code 2.01]
3. Declare and avoid any financial or social tie to sellers or clinics. [source: APA Ethics Code 3.06]
4. Seek supervision when the case stirs strong feelings.
Example language (illustrative): "I'm not the right person to judge the medicine, but I can help you think it through and get good answers from the people who are."
Watch for: your own rescuer or ridicule reactions. It is working when the client keeps telling you the truth.

Handling problems [synthesis]:

Client insists it is working. Do not argue. Ask what they and their doctor are measuring, and ask whether they would be open to their doctor checking blood and organ function.
Distrust of medicine after past harm. Acknowledge the harm. Look for one trusted clinician, or a second opinion within evidence-based care.
Rupture after you share warnings. Name it, apologise for anything that felt like judgement, and return to the client's goals.
Group or online-community pressure. Explore the group's rules and the cost of dissent; plan for safe information sources.
Client stops therapy. Send a brief, warm note leaving the door open, with emergency and poison-centre information.
Terminal illness and choosing peroxide over palliative care. Respect autonomy, keep the palliative-care offer open, and focus on meaning, comfort and relationships.

Sources

Cited through the sources above, not consulted directly: Hatten, B. W., et al., Annals of Emergency Medicine (2016/2017), on high-concentration peroxide ingestions reported to US poison centres [uncertain: exact citation not verified]; the 1991 Journal of Emergency Nursing case report [uncertain: not verified].

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