herpes simplex
"I have been using abreva for years and it is incredibly good. I got off a phone call with the bank and within minutes the cold sore was starting to form and my bottom lip was beginning to tingle and itch. At that point I knew - so I drove as quickly as I could to the pharmacy and purchased a bottle. Applied it immediately and the cold sore literally stopped in its tracks. I put it on at least 3 times that day and by the next morning (today) it almost looks as if nothing is there. No red spot near the edge of my lip. Now just a very small bump that is already beginning to get smaller and smaller. I would recommend this stuff to anyone. It works like magic if you put it on right when you feel the cold sore start to come in."