hi a lot of std's do take around 8 weeks to show them selves. ok so young man as this is a visual thing you have a we cant see it its best you go off and show it to your doctor for a look see don't worry he or she has seen it all before. and don't get embarrassed you showed it to a girl and now its a doctor. good luck
hi there is a hickey looking i wouldn't say rash but it's about the size of a quarter and it's on the shaft of my penis. im worried that it might be hiv because recently i had unprotected sex. i'm 16