According to Dr. Monica Li, a double board-certified dermatologist in Vancouver, a majority of the population has the herpes virus inside their bodies in a dormant state. One report estimates that 89 ...

1:06 Colds sores: the difference between HSV-1 and HSV-2 Cold sores can be tiny and painful, and for some, they keep appearing over and over again. Dr. Dick Zoutman, chief of staff at Scarborough ...

How cold sores are spread For many, the initial encounter with a cold sore occurs in infancy. It can happen through everyday gestures of affection, like a kiss from a doting relative, says Dr. Foyle.