Blisters

Introduction
What causes them?
Treatments
Prevention
When to seek medical attention

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Blisters are a build up of fluid, forming a raised circle or oval just under the top layer of your skin.

This topic describes blisters caused by friction, such as when your feet get rubbed by a new pair of shoes. If you or your child has a blister caused by a burn, see Burns & scalds for advice.

For more information about blisters caused by friction, click the links above.

This information does not replace medical advice. If you are concerned you might have a medical problem please ask your Boots pharmacy team in your local Boots store, or see your doctor.