Yes Please Do. I'm Looking For Ways To Treat The

Yes please do. I'm looking for ways to treat the abrasions on the head of my penis. My wife and I had intercourse 5 days ago and it was a bit more intense than usual. The following day the head of my penis felt very sore and itchy and By that afternoon a small blister had formed at the tip, beneath that were 4 small red spots. It's very irritated still, however this morning, when I woke, the blister had popped on its own and now that spot is basically a scab, very hard and dark red. I have no insurance at the moment, I'm hoping there's an over the counter solution?