A couple of weeks ago I had unprotected sex with a guy I knew. To my knowledge and upon questioning he said he had been std checked and was clear. A day later I got a morning after pill and the next day I had a small itching rash with slight welts on my buttocks in the crack. I went and got std tested and asked my gyno if it looked like herpes to which she replied not at all it just looked like an irritation. I didn t get the blood test thought I am today. The rash grew a bit but I decided to stop wearing a pair of jeans that seemed to make it worse and go without underwear and it seemed to get a bit better. I did a bunch of laundry the other day and though the pants and underwear would be fine but my rash got worse. My boyfriend and I had sex and I took another morning after pill and now the rash has spread to my groin but not my genitals. It looks a bit like razor burn, and there seem to be like a couple of pimples not blisters. I ve also had some odd rashes in other places but they ve cleared up. It itches like crazy. I did switch fabric softeners scents around that time but, I m worried I may have herpes? I have a history of sensitive skin and had eczema when I was young. Any help?