My boyfriend is having this problem after sex, has anyone else experienced this?

Ol

So me and my boyfriend have been together 2 years and had a very active sex life throughout, we’ve used both the pill and condoms but now strictly use condoms as I am off the pill due to personal reasons. But we haven’t changed brands or anything, we’ve always been using the same and they work completely fine.

However the last 2 times me and my boyfriend have had sex, after his orgasm he’s been experiencing some red rashy spots on the tip of his penis? They are not itchy and cause him no pain, and go down after a few hours/a day at most, they almost look like burst blood vessels.

Neither of us have had other sexual partners and as I said, always use condoms so it’s a bit of a concern why this has started to occur.

We’ve been having sex more frequently recently but surely that’s not a factor in this?

He’s not too concerned due to the lack of other symptoms alongside this but obviously it’s a bit of a worry. For the whole sexual experience these spots do not appear, it’s only after the end and his orgasm.

I was just wondering if anyone else has experienced this, or how you went about solving it? Thanks