cold sores
"Valtrex is the only way to go.  I have suffered with fever blisters as long as I can remember and they are just miserable.  I get them when I run fever, sunburn on my lips, or are really stressed.  Woke up with one this morning...I took Valtrex, and it will be gone by nightfall.  My son also has problems with fever blisters, but they break out underneath his eye.  Since he has been taking Valtrex, he has not had any problems.  I also had the Shingles vaccine, which has cut down on my fever blister outbreaks unbelievably.  I still get them, but usually as a result of illness.  This is the best medication to come out to fight the herpes virus, ever!"