Bullous pemphigoid is a blistering skin disease that tends to affect the elderly.

It's caused by a problem with the immune system, but usually goes away on its ownwithina few years. In the meantime, blisters can be controlled with medication.

About1 in 10,000 people are affected by the condition in the UK each year.

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Medically Reviewed by a doctor on 30 Nov 2016