Valacyclovir
"This is practically a miracle product. I've been getting cold sores since I was about 2 years old. My whole life, whenever I would get a cold sore, it would be a 10 day ordeal. They were embarrassing and painful. Now, the second I know that there is a cold sore coming I take the medication and the sore will stop in its tracks and scab up 24 hours later. It is the best thing for any cold sore sufferer. Don't bother with Abreva or any of those ointments at the Pharmacy."