herpes simplex
"I got HSV-1 in 2008 from my cheating on my now ex-wife. It was never a problem until a breakout in 2010. I never went on antivirals until this breakout and I now know why this was so bad. In summer of 2010 I had neck surgery and had 4 fusions from c4-c7 and after reviewing this, the virus lies dormant in the base of the neck in nerve are called the ganglion. If you have HSV-2 (genital) herpes it lies in the lower back dormant.  So, my first breakout 6 months ago in June 2011 gave me the worst ever making not only a cold sore but fever blister clusters on top and middle lip. Been on acyclovir since July 400mg twice daily. Still barely helped. 3 days ago got Zovirax cream and after 6 months its finally gone. This works awesome."