What Are Fever Blisters?

Q:
What are fever blisters?

A:
Fever blisters, sometimes called cold sores, are groups of small blisters on the lip and around the mouth. The skin around the blisters is often red, swollen, and sore. The blisters may break open, leak a clear fluid, and then scab over after a few days. They usually heal after several days to 2 weeks.

Keyword: fever blister; fever blisters

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