Cold Sores Overview
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Cold sores are small, painful, fluid-filled blisters or sores that appear on the lips, mouth, or nose that are caused by a virus. The sores can be painful and usually last a few days. Unlike most viral infections, the cold sore virus is not completely eliminated by the body defenses. For this reason, cold sores often recur.
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Cold Sore - Symptoms
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Herpes Simplex Infections - Treatments
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