About 3 days ago I had protected sex for about 3 hours. This morning, in the shower, I noticed that around the base of my penis, on the side facing me and right at the line of my pubic hair there were many small red bumps. They don't look very big, somewhat like hair follicles, but there doesn't appear to be hair growing out of them. About 2/3 of the small red bumps are actually under my pubic hair, above the penis. If I were to guess I would say there are over 20. They do not itch currently, but it does look like a rash/skin irritation.
This area of my genitals was not protected by the condom, and I'm wondering if I might have gotten something passed to me from my partner's vaginal fluids. Obviously if this doesn't clear up in a few days I am going to get it checked out/tested, but I would like some feedback if anyone has any useful things to say. I am mostly worried that this might be herpes.
Thanks