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Blisters are fluid-filled bumps that look like bubbles on the skin. They usually form when someone’s skin repeatedly rubs against something or is exposed to heat.

When someone gets a blister, the part of the skin that is damaged leaks fluid that collects under the top layer of the skin, forming the blister.

What to look for - Blisters

Most blisters heal themselves within a few days. But seek medical help if: 

• they are extremely painful

• you think they may be infected, or

• they keep coming back

What you need to do - Blisters

If someone has a blister, don’t burst it as this can increase the risk of infection.

Wash the skin around the blister with clean water.

Gently pat the skin dry with a sterile gauze pad or a clean, non-fluffy material.

If the blister was caused by something rubbing against the skin, cover it with a plaster ideally a special blister plaster, as these have a cushioned pad that gives extra protection.

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