Herpes Simplex
"Cold sores last up to 1 week to even 2 weeks if you don&#039;t use treatment. By using Abreva, you can shorten that time to around 4-6 days. Abreva isn&#039;t used to lower your cold sore nor get rid of it completely after only a couple of uses. It&#039;s used to shorten the length of your cold sore, very effectively."