I had unprotected sex with a girl last thursday. About 5 days later I started experincing burning, tingling and itching in the groin area. I was starting to get major itching on the penis, scrotum and at times in the pubic area. It seemed to go away but has just recently appeared. Now I get mainly all over the penis shaft and on the scrotum. Also it just seems to be irritable when I am wearing clothes especailly with really tight underwear. The rubbing creates this uncomfortable friction which is sometimes unbearble. Can someone tell me what it is?