Bullous Pemphigoid: Causes, Symptoms, and Treatment
Medically reviewed by Achuta Uppu, MD, Internal Medicine. Last reviewed: October 23, 2026.
What kind of doctor treats Bullous Pemphigoid?
A dermatologist, a doctor who treats skin diseases, usually cares for people with bullous pemphigoid. Your primary care doctor can start the evaluation and review your medicines. A direct primary care or concierge doctor can be a first stop for an evaluation and can refer you to a specialist when needed.
What is bullous pemphigoid?
Bullous pemphigoid is a skin disease that causes blisters. It is an autoimmune disorder, which means the immune system attacks the body by mistake. The immune system damages proteins that hold the top layer of skin to the layer below. Fluid then collects under the skin and forms blisters. The disease mostly affects older adults and usually lasts months to years.
Symptoms
Itching often comes first. It can be intense. Blisters appear weeks to months later. Common signs include:
- Firm, tense blisters that can be 1 to 4 centimeters wide.
- Clear fluid inside the blisters, sometimes blood.
- Red, raised, itchy patches before the blisters form.
- Blisters on the arms, legs, trunk, armpits, or groin.
- Mouth blisters in rare cases.
Open blisters can let germs in. A skin infection is the most common complication.
Causes and who gets it
The immune system makes antibodies, proteins that normally fight germs, that attack the skin by mistake. This disease is rare in young people and mostly affects people over 60. In some cases, a medicine sets it off. Drugs linked to it include water pills such as furosemide, NSAID pain relievers, and some antibiotics and cancer medicines. The blisters often show up weeks to months after such a medicine is started.
How doctors diagnose it
The doctor examines the skin and asks about all medicines you take. A skin biopsy, taking a small sample of skin to check, is the main test. Lab staining of the sample shows where the antibodies sit. Blood tests can also find these antibodies. These tests tell bullous pemphigoid apart from other blistering diseases.
Treatment
Corticosteroids are the main treatment. These are anti-inflammatory medicines that calm the immune system. They can be rubbed on the skin or taken as pills. If steroids do not work or cannot be used, other medicines that lower immune activity can help, such as azathioprine, methotrexate, or mycophenolate mofetil. Antibiotics in the tetracycline family may also help. For stubborn cases, doctors sometimes use rituximab, omalizumab, or intravenous immunoglobulin. Treatment complications can occur, especially from long steroid use, so the doctor watches closely and lowers the dose when possible.
When to see a doctor
See a doctor for unexplained blisters or an itchy rash that does not improve. Seek care right away if you have oozing sores, or broken skin over large areas, because the disease can make the skin fragile and open to germs. Call 911 or go to the emergency room if open blisters come with confusion, trouble breathing, or fainting, because a skin infection can spread to the blood. The sooner the disorder is treated, the better the prognosis.
How a direct primary care or concierge doctor fits in
A direct primary care doctor charges a flat monthly fee instead of billing insurance, while a concierge doctor usually charges more and often works alongside insurance. Either can spot early blisters, check your medicines for possible triggers, and coordinate care with a skin specialist over the long term.
Common questions
Is bullous pemphigoid contagious?
No. It comes from the immune system, not from a germ. It does not spread from person to person.
Does bullous pemphigoid go away?
It often goes away within 5 years, but it can last a long time and sometimes comes back. Treatment controls the itching and blisters while it lasts.
Why do older adults get it more often?
The disease is linked to aging immune systems. It mostly affects people over 60 and is rare in young people.
Can a medicine cause bullous pemphigoid?
Yes, in some cases. Water pills, NSAID pain relievers, and some antibiotics and cancer medicines have been linked to it. Tell your doctor about every medicine you take.
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Medical Disclaimer
This content is for general educational and informational purposes only and is not medical advice. It is not a substitute for professional medical advice, diagnosis, or treatment, and reading it does not create a doctor-patient relationship. Always seek the advice of your physician or another qualified health provider with any questions about a medical condition, and never disregard or delay seeking professional advice because of something you read here. If you think you may have a medical emergency, call 911 (or your local emergency number) immediately.
