Symptoms, remedies, treatments and care for Cold Sores

Cold Sores

Cold sores, sometimes called fever blisters, 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.

Cold sores are caused by the herpes simplex virus (HSV). Cold sores generally are not serious. They usually heal in several days to two weeks.

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