Blisters

A blister is a small pocket of fluid under the skin, often caused by rubbing. Keep blisters clean and covered, and avoid popping them.

Well-fitting shoes and socks help prevent blisters.

Tight shoes, new trainers or long walks are common causes. The fluid protects the skin underneath as it heals.

Keep a blister clean and cover it with a plaster or dressing. Do not pop it, because this can let germs in and cause infection. If the blister becomes very painful or red, tell an adult.