herpes simplex
"This product saves me all the time, if any one has issues they should be sure to consider how to maintain your lip on the path of healing. 
Examples: DO NOT LICK LIPS, it is such a terrible way to spread to the other parts of your lips and also the inside. I also advise to make sure you put chap-stick to moisten the rest of your lips but not including the infected area because you will spread it. 
Best advise I can give you is apply Abreva as soon as you feel even the slightest bump. It helps it prevent it and quicken the process. Make sure you use a Q-tip because I think the best way to cure a cold sore is being very clean with it and fast to cure. 
Abreva is probably best in the market and the first to consider."