Herpes Simplex
"Try abreva! It&#039;s most effective when used as soon as you feel a cold sore coming on. It&#039;s my go to and only when I fail to notice the cold sore start and then start using abreva does it not work as well. Abreva combined with prenatal, zinc, and l-lysine supplements you can knock out a cold sore within 3 days."