A painful rash of grouped blisters on one side of the body, caused by the chickenpox virus reactivating.

Start here
What it is
A painful rash of grouped blisters on one side of the body, caused by the chickenpox virus reactivating.
Notice
What you may notice
Pain, burning or itching followed by grouped blisters and crusts.
Context
Who it can affect
People with a painful one-sided blistering rash.
A conversation with the doctor
What may help
Early medical review may reduce illness and lasting nerve pain.
Treatment started early may help reduce illness and nerve pain. Your doctor will decide what is suitable; response varies.
Before you come
What you can do
- Seek prompt medical review.
- Rest and avoid fiddling with blisters.
- Seek urgent help for face, eye or breathing symptoms.
Reviewed by Dr. D. A. Satish · review date to be confirmedUnder clinical review