Does this look like Herpes or something else?

This past weekend I engaged in unprotected sex with a girl I know (stupid of me). She claimed to be clean but I developed a rash on my scrotum 38 hours later. The rash is red with small darker red circles. I can't tell if this is the early stage of my first breakout or something else. In general my entire scrotum is dry and flaky seeming. I should note that I was also in hot weather and tight pants for an extended amount of time this weekend, so I'm hoping that this is just a jock rash of some sort. 

The rash itches and has burned a bit, but I don't have any flu-like symptoms and peeing doesn't hurt. I've attached pics below so please let me know what you think. I'm planning on seeing a doctor, but can't for a few more days.

Well I just got a cold sore...so I'm guessing I'm screwed. I'm so depressed I can't handle this.