I've been on and off with one guy for a couple years. The past couple times we've been on, he's gotten a rash a day or two after he's slept with me. This hasn't happened with any of my other partners, ever, and I don't show any symptoms. When he got it checked the practitioner told him it wasn't herpes as we thought, but that she couldn't identify it. I am DFAB and he's DMAB.
Neither of us has any idea what is happening and we're very stressed and confused. The bumps are red and itchy and are generally showing up under his pubes, none on his penis. They haven't ever burst, they just disappear after a few days. What's happening? Is it an allergy to my lipgloss or an unfortunate pH problem? Is it an sti?
Thank you for your help