herpes simplex
"I'm shocked to read people say this stuff makes your cold sore disappear because I have tried it numerous times and every time my cold sore grows to be huge. Yesterday I drove to the pharmacy when I felt the tingling. I had a tiny blister and I proceeded to apply the abreva. I kept reapplying every 3 to 4 hours and it only seemed to get worse. Woke up in the morning and it was as if I hadn't used anything! The only thing I will say is that my cold sores last about 3-4 days with abreva (at least I think it's because of abreva). I do however need something better for my $21."