herpes simplex
"I've had outbreaks on my lips for over 25 years. At the age of 30 I'm told to try taking a pill at the first sign, only couldn't find a doctor to prescribe me any until AFTER I broke out so they could SEE I actually had one. Finally I found a doctor and now I take 200 mg every third night and a full 400 mg if I even think I'm getting a sore. So far so good, no outbreaks in 3 years. Love it. No side effects either!"