When I was sixteen, I went to the gynecologist because I was sexually active and was experiencing breakouts of painful, open sores like canker sores around my vagina and labia. I am now 19 years old and I still have the same problem. I usually only have one sore at a time and I get a breakout every once in a while. I have been tested for all STDs and I have been tested for herpes at least five times over the years, negative every time. They are so painful and last for about a week. During that time period, peeing, walking, sitting up straight are all very painful. The doctors are are stumped. I was told to go to a specialist the next time I have a breakout so I plan to. Valtrex is a pill for herpes that I was given by my doctor to help make the sores go away, and it works but often makes me nauseous. I'm more interested in finding out what it is than finding a cure, even though I would love both. Does anyone else have this problem?