What it is
It is not contagious. Some medicines can trigger it.
Treatment usually involves strong steroid creams or tablets and other medicines that calm the immune system. Blisters need care to prevent infection.
Common signs
- An itchy, red, raised rash
- Large, tense blisters on the arms, legs, tummy or skin folds
- Blisters in the mouth occasionally
How it is usually diagnosed
- Skin biopsy, including a special test (immunofluorescence)
- Blood tests for the antibodies involved
Records worth keeping
Keeping these together makes each appointment easier, especially when you see a new doctor:
- Biopsy and blood test results
- Dermatology letters and treatment plans
- Blood sugar, blood pressure and bone checks while on steroids
Questions to ask your doctor
- Could any of my medicines have triggered it?
- How long will treatment last?
- How should I care for the blisters?
When to get help right away
Call 112 or go to the nearest emergency department if you have:
- Blisters with spreading redness, fever or feeling very unwell, which may be an infection
This page is general information. It is not a diagnosis and does not replace a doctor who knows your history. Medfold keeps your records organised; it does not interpret them.