ok i havent ridden all week and now i have a rash on my arse. either its just an embarrassing rash or saddle sore. does onset come directly after riding or could it still be saddle sore despite the delay ?
Baby powder. Seriously. Non-scented talc. Any drugstore should have it. Works wonders.
And I've found one key to avoiding this painful malady is to change out of your shorts as soon as possible after riding, so that your taint ain't marinading in sweat. If that's not possible, a discrete rub-down with body wipes (e.g. Shiseido Ag+ Clear Shower Sheet) helps a lot.