I'm male. Over the last 3 weeks or so I've had unprotected sex with a woman 4 times. On the first occasion, an itchy red rash development on the head of my penis and foreskin. It started about 12 hours after intercourse. It looked exactly like an allergic rash I get in response to spermicide. Also like that allergic rash, this rash went away over the course of about the next 4 days.
We had sex a week later - same thing. Rash gone after 4 days.
At my suggestion, she stopped using a vaginal washing product she had been using. The next time we had sex, there was no rash (but I also washed my penis thoroughly fairly soon after sex).
Then a couple of days ago, we had sex again and I got a rash again (but I didn't wash soon after sex) and she has not been using the washing product. Again, the rash seems to be on course for going away after 4 days.
My suspicion is that this is an irritation or allergy and not a yeast infection? I say that because it always comes on after about 12 hours, and goes away after about 4 days. From reading on the web, that doesn't sound at all like a yeast infection, but I could be completely mistaken of course.
So I'm suggesting to her that to stop this happening we should be looking at other personal care products she is using, but she thinks she should be treating herself for yeast infection.
Grateful for any help! Thanks!