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 for around ten to fourteen days. Cold sore symptoms include small, painful, fluid-filled blisters on a raised, red area of your skin, typically around the mouth; and pain or tingling, called the prodrome, which often precedes the blisters by one to two days. Cold sores are indicative of oral herpes, medically known
Cold Sore Prevention
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