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Cold Sores: What Is, Causes, Symptoms, Stages, and Treatment

What Is Cold Sores?

Cold sores are a common viral infection that usually affects lips and skin around the mouth, chin, or nose. They are tiny blisters filled with fluid, sometimes called herpes simplex labialis, fever blisters, and oral blisters. Although this condition is not curable, several treatment options can reduce the number of outbreaks and heal sores more quickly.

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