Please help! Around 5 days ago I had sex with my boyfriend and noticed that night I was experiencing more pain than usual. The next day, the pain had gotten worse so I checked it using a mirror to find what looks like an ulcer. I have no other symptoms apart from the pain and the ulcer. Please help! Neither myself or my boyfriend have any history of Herpes, and we have not had sex with anyone else in almost a year. My boyfriend has not experienced any ulcers or pain before. What could this possibly be?
