|Home > Community resources > HealthDay News > Health Tip: What Causes a Cold Sore?|
Health Tip: What Causes a Cold Sore?
Factors can include injury or stress
-- Diana Kohnle
(HealthDay News) -- A cold sore is a painful sore that often forms on the lips or around the mouth. While a cold sore is caused by the herpes virus, many factors can act as triggers.
The American Academy of Dermatology says potential triggers include:
Copyright © 2014 HealthDay. All rights reserved.