STD question. I'm a man and I had unprotected oral sex with a woman, both received and gave, 6 days ago on Monday. On Wed and Thurs I took a morning shower and then I was out in the sun and sweat a lot both days. Friday morning I noticed I had either a slightly painful pimple or ingrown hair. It was just one average size pimple at the base of my penis. Red ring with an off yellow center. I popped it and a small amount fluid came out. I dried it with some tissue washed it and applied a little triple antibiotic ointment. There was very little pain or discharge and today it's just a small red dot. What are the chances that it's herpes?