Cold sores, or fever blisters, are precisely herpes simplex virus type 1 (HSV-1) that appear as fluid-filled blisters around ...

plus no greasy mess on my lip. ANSWER: The first antiviral drug developed for herpes simplex infections was Zovirax ...

Medically reviewed by Katlein Franca, MD In some ways, the features of a cold sore vs. a pimple on the lip line are very ...