I am a married man who recently engaged in oral sex with a transexual, both giving and receiving. Both people wore a condom and unless there was condom failure, was no direct skin on skin contact. This occurred on Friday July 1st. I m concerned about an STD/STI. Since the encounter I have experienced some jock itch and anal itching. Before the encounter I trimmed my pubic hair and I do know that that itself may lead to itching. There appear to be some brown spots on my scrotum, though they certainly could have been there before the encounter. Nothing is oozing. Nothing is raised or otherwise looks out of the ordinary. I also am in the middle of a taking a Z-Pak for a sinus infection.