Cheating x. 2 Weeks later rash. Rash.

I had symptoms of uti.. Mostly just discomfort and a slight twinge when my urine steam finished..Then menstrual cycle started and after 3 days red and pink flat but raised bumps appeared down my labia majora on both sides. No pain, no itch really, just very lightly and around my clitorus more than anyrhing. Dry looking skin, but no oozing, no burning when i pee and my uti pain is subsided.. The bumps looks worse in bright lights like a flashlight than just normal lighting.. I don't know what to do, I'm a broke college student without insurance and I've always been safe sexually. I've gotten my checks previously while with my ex and all. This just all happened at once. I get some slight twinges down there and it's only tender if I touch anything too much. Also none of my rash looks like herpes blisters at all. I do shave but this is more than razor rash.