Herpes Simplex
"I am currently using Abreva for the first time and I will absolutely use it again! I did not apply until after the blister appeared. It was a large cluster sores (about the size of a dime). I am so happy with how fast it worked! Typically, my cold sores last 10 days. It&#039;s been 4 and my cold sore has significantly reduced in size - its practically gone. I&#039;m confident it&#039;ll be gone by day 7. There has been no crusty dry stage - which I feel is the most embarrassing. I have to agree with another comment I read about the bright white color.  I would have liked to use it more frequently throughout the day, but didn&#039;t want to draw anymore attention with white paste all over my face at work. It was worth the $20, a little goes a long way!"