What are Cold Sores?

Do you ever get blisters near your mouth? They may be cold sores or fever blisters, which are caused by the herpes simplex virus (HSV-1 or HSV-2) and are very contagious. You may notice a tingling, tenderness or burning even before the actual sore appears. Cold sores start out as blisters and then crust over. They normally clear up without... read more »