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Blisters

1 sourceEvery line checked against its source

In short

Blisters are fluid-filled sacs on the outer layer of your skin.

Worth knowing2

  • They form because of rubbing, heat, or diseases of the skin.

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  • Blisters often happen when there is friction - rubbing or pressure - on one spot.

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What helps3

  • Blisters will usually heal on their own.

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  • The skin over the blister helps keep out infections.

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  • You can put a bandage on the blister to keep it clean.

    MedlinePlus

What to avoid1

  • Normally you don't want to drain a blister, because of the risk of infection.

    MedlinePlus

See a provider if1

  • See a health care provider if: the blister looks infected - if it is draining pus, or the area around the blister is red, swollen, warm, or very painful; you have a fever; you have several blisters, especially if you cannot figure out what is causing them; you have health problems such as circulation problems or diabetes.

    MedlinePlus

Sources

These pages describe what the sources say. They cannot say what is going on with your skin.

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