Question:
I have had a canker sore for a few months now and right when i had it i preformed very brief oral sex on a female, a lil bit after that she prefromed very brief oral sex on myself. i still have the canker sore and i have experienced a rash in my pubic region i dont know if it is razor burn or herpes is it possible to get herpes from giving brief oral sex while having a canker sore? and receving oral sex the same night?

Answer:
Canker sores are not caused by the herpes simplex virus, and they're not contagious. so if something weird is going on down there, it's probably not because of your canker sore.