Cold Sore Symptoms to Know
One in two adults in the United States has the herpes simplex virus type 1 (HSV-1). And one in eight adults in the U.S. has herpes simplex virus type 2 (HSV-2). Both viruses cause lip discomfort and pain when a cold sore appears. Cold sores are small, fluid-filled, nasty-looking blisters on or around the lips. The firs
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