Swelling at the base of penis/scrotum. I'm sure it is some sort of infection because I have chills. A scab formed on my scrotum, even though I did not scratch or cause the scab by scratching. After visit with my doctor, he treated me for epididymitis with Ciprofloxacin, which didn't work. Had urinalysis with reflex to microscopy and culture chlamydia /GC which came back negative. It feels like someone lit a match, blew it out and touched it to the outside of my scrotum. This is the 2nd time I've had it and was treated last time with Ciprofloxacin which worked (I think coincidentally). This occurrence has been going on for 2 weeks now. It's painful and won't go away. Can you help?