Why Do I Keep Getting Cold Sores on My Lips?

Answer

Cold sores are caused by herpes simplex virus type 1 (HSV-1). After the first infection, the virus remains inactive in the nerves of the face. In some individuals, the virus becomes full of life again from time to time. When this occurs, cold sores appear. HSV-1 can become active again as a result of a cold or fever.
About -  Privacy -  Careers -  Ask Blog -  Mobile -  Help -  Feedback  -  Sitemap  © 2014 Ask.com