My boyfriend and I had a bit of unprotected sex last thursday, then we did it again for a little while on sunday, but we used a condom after we'd played around a bit but we had really hardcore sex, after thursday he had a bit of an irritation but it didn't bother him, then yesterday he said it had got worse, is it because we had hardcore sex when he was a bit sore. The head of his penis is just a bit irritated, there is no discharge or anything