What do you guys think it is

[Marcus]

Hi everyone I'm new to the forum. Well here is my story: I had a wild weekend of passion with my gf only becuase we haven't seen each other in such a long time. We were sweating alot and we had sex alot of times. Well anywho I noticed later that I had patches of little red bumps along my groin and I had 3 little red bumps on my penis. We stopped having sex after that point and with in 2 days all the bumps had dissappeared except for one on my penis. I tried popping it and nothing came out but I noticed that it was bigger today so I squeezed it and puss came out along with some blood and clear liquid. I went to my doctor and he looked at it and said not to worry at all and that it was and that it was sweat that probably caused it but he tested me out anyways. It's only happened once before maybe 2 months ago same type situation with the sex but there was only bumps on my upper groin along my pubic hair line that went away in a couple of day. Anywho do you think there's anything to worry about?