I made a huge mistake and am very scared. I had sex with a man of unknown status. I am also a man, but this was my first time. I used a condom and only I entered. The condom did not break but I did notice he has a rash on his rear. I didn't think much of it at the time. I just thought it was just acne or folliculitis which I had in college from playing sports, but then I looked at some websites and am now terrified it might have been scabies, herpes or second phase syphilis. It was a big rash and was not in the anal cavity but more in the gluteal area. I am terrified. Does this sound like and STD and Is it contagious? Only the part of my privates that was not covered with a condom might have touched it and maybe my hand or leg. I am really scared and wish I had stayed abstinate.