I just started seeing a new girlfriend. We slept together Thursday night, and Friday morning (it's Sat am). The sex was vigorous with a lot of friction in the pubic hair region above my penis. Yesterday I had a mild rash in my pubic hair region, and today it has gotten quite a bit worse, with several VERY small whitehead pimples on the tips of some of the red bumps. No real itching, or burning, or discomfort... just the rash. There's one small pimple on the base of my penis, otherwise nothing on the actual shaft or testicles. I saw one or two a few weeks ago on my upper left thigh (appeared 1.5-2 days after sex), but they were very small and went away in a day. I'm assuming this is likely folliculitis
or dermatitis due to the friction, but I'm not sure, and don't know if I should go to a dr. Also, how should I treat it.
Also, about 8 years ago I had a severe rash on my upper left thigh, that blistered badly. After months, I finally got it looked at, and the doc believed it was molluscum contagium (I think - it was so long ago. But he mentioned it was a common rash in children). I took antibiotics I believe and haven't had any issues since. STD tests all negative.
I've slept with only a few girls in the last few years, with no issues or symptoms.
Also, the 2nd, 3rd, and 4th time I slept with this girl (over the course of about 10 days) she was bleeding a little. This hasn't happened in the last 3 weeks.
I'm 31 male. She's 23.