Re: Red rash on scrotum
If you search the site for Chronic red scrotum, there are a lot of threads on scrotal redness. Posted on the men's health forum mainly. Different people having different conditions and different cures have been found but if you look through them all you may find something that helps. Using a condom and keeping underwear on or otherwise covering the scrotum during sex would reduce the friction/possibly pain and protect your partner. Even if the initial condition isn't infectious, (and your derm isn't sure), skin damage will give an opportunity for all the fungi and bacteria that live naturally on the skin to proliferate.