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Autoimmune & autoinflammatory

Autoimmune progesterone dermatitis

Autoimmune progesterone dermatitis is a cyclical rash - hives, eczema-like patches or target lesions - flaring in the days before each period as the body reacts to its own progesterone.

Key points

The essentials at a glance.

What to look out for, which tests matter, who treats it, and what usually happens next.

  • The defining clue is timing: eruptions recur 3-10 days before menstruation and settle within days of bleeding starting

  • The rash wears many costumes: urticaria, eczema, erythema multiforme-like targets, mouth ulcers, even anaphylaxis-like episodes

  • Many patients report prior exposure to external progestogens (pill, fertility treatment) before the sensitivity began

  • Diagnosis combines the menstrual diary with progesterone skin testing or a therapeutic trial of ovulation suppression

  • Treatment ladders from antihistamines through ovulation-suppressing hormonal therapy to GnRH analogues, with desensitisation described

Understanding it

About Autoimmune progesterone dermatitis.

The pattern hides in plain sight because premenstrual skin grumbles are common and rarely charted: what distinguishes this condition is a stereotyped eruption returning every single cycle in the luteal window, when progesterone peaks, and vanishing with menstruation - a rhythm that a two-month photographic diary displays unarguably. The immunology is genuinely curious, a hypersensitivity to an endogenous hormone, and cases cluster after exposure to synthetic progestogens, as though the immune system learned the molecule from the outside first.

Confirmation and treatment overlap elegantly: if suppressing ovulation - typically with a combined contraceptive or GnRH analogue - abolishes the eruptions, the diagnosis is effectively proven and the treatment already running. Milder cases settle for antihistamines and short steroid bursts timed to the luteal phase; severe or anaphylactic presentations justify definitive endocrine suppression, documented desensitisation protocols in specialist units, or - for women whose families are complete and symptoms devastating - surgical removal of the ovaries as a final, curative option. In many parts of the UK, a routine NHS referral to the relevant specialist clinic currently means waiting many months - sometimes more than a year for the rarest conditions - whereas an initial appointment with a private consultant is typically available within around two weeks, with investigations arranged soon after.

Frequently asked

Common questions about Autoimmune progesterone dermatitis.

Quick, plain-English answers to what people ask us most.

  • What is autoimmune progesterone dermatitis?

    Autoimmune progesterone dermatitis is an infection that develops when bacteria, viruses or other organisms invade the affected tissue and trigger inflammation. Severity varies widely, from a mild, self-limiting illness to a more serious infection that needs prompt treatment. The specific organism responsible, and how quickly it is identified, has a big influence on the best treatment.

  • What causes autoimmune progesterone dermatitis?

    Autoimmune progesterone dermatitis is caused by an infectious organism, which may be bacterial, viral or fungal depending on the specific condition. It can spread through close contact, contaminated surfaces, insect bites, or from another site of infection in the body. People with a weakened immune system, chronic illness or certain risk factors are generally more susceptible.

  • What are the symptoms of autoimmune progesterone dermatitis?

    Symptoms of autoimmune progesterone dermatitis vary from person to person and depend on how severe the condition is and which structures are affected. Some people notice symptoms gradually over weeks or months, while others experience a more sudden onset. Because symptoms can overlap with other conditions, a proper assessment is important to reach an accurate diagnosis rather than relying on symptoms alone.

  • Is autoimmune progesterone dermatitis serious or dangerous?

    Most cases of autoimmune progesterone dermatitis are manageable, especially when identified and treated early, but severity varies from mild and self-limiting to more significant, depending on individual circumstances. Left unassessed, some cases can lead to complications or a longer-term impact on daily life. If you are worried about your symptoms, it is always worth getting them checked rather than waiting.

  • Is autoimmune progesterone dermatitis contagious or can it come back?

    Whether autoimmune progesterone dermatitis can be passed on or can recur depends on the specific cause and how well any underlying trigger is managed. Some cases are a one-off, while others can flare again if you are re-exposed to the same trigger or organism. Your clinician can advise on the specific risk of recurrence in your case and any steps that reduce it.

  • Can autoimmune progesterone dermatitis be cured, reversed or prevented?

    Outlook varies with autoimmune progesterone dermatitis: some cases resolve completely with treatment, others improve significantly but need ongoing management, and a smaller number become a long-term condition to be controlled rather than cured. Prevention strategies, such as addressing modifiable risk factors, can reduce your chances of developing it or of it recurring, but cannot guarantee against it in every case.

  • How is autoimmune progesterone dermatitis treated?

    Treatment for autoimmune progesterone dermatitis is tailored to the individual and depends on severity, underlying cause and personal circumstances. Options can range from simple lifestyle measures, monitoring and conservative treatment through to medication, specialist procedures or surgery in more significant cases. A specialist assessment helps identify which combination of treatments is most appropriate for you.

  • How long does autoimmune progesterone dermatitis last?

    The duration of autoimmune progesterone dermatitis varies considerably: some people recover within days or weeks, while others live with a more persistent or recurring condition that needs ongoing management. Response to treatment, how early it is started, and individual factors all influence the timescale. Your clinician can give you a more personalised estimate once your specific circumstances are known.

  • When is surgery needed for autoimmune progesterone dermatitis?

    Surgery is not usually the first option for autoimmune progesterone dermatitis and is generally reserved for cases where conservative treatment has not worked, symptoms are severe, or there is a significant structural problem that needs to be corrected directly. The decision depends on your specific findings, symptoms and how they are affecting your life. A specialist consultation is the best way to establish whether surgery is being considered too early, or should be considered sooner rather than later.

  • When should I see a doctor about autoimmune progesterone dermatitis, and how quickly can I be seen privately?

    It is worth seeing a doctor about autoimmune progesterone dermatitis if symptoms are persistent, getting worse, or affecting your daily life, rather than waiting to see if they settle on their own. NHS routine referrals to a specialist can currently take anywhere from around 20 to 45 weeks or more depending on your area, whereas a private consultant can typically see you within about 2 weeks. Getting an earlier assessment can help clarify the diagnosis and start the right treatment sooner.