herpes simplex
"Save your money ! Abreva is not only expensive, IT DOES NOT work.  I used it for the first 3 days from the first tingle.  My cold sore did not get smaller it just kept growing.  Searched the wed for other alternatives and came across Vicks rub.  So glad I gave it a try. Instant pain relief with the Vicks and blister is getting better within a few hours !"