What could this rash be? it itches like crazy and is spreading outward from the public area onto my groin, inner thigh, and stomach. i

Depends : Bright red plaques that are moist itchy and odorous on groin can be candida. If pustules around hair follicle, may be folliculitis or scabies. Better to have doc look at it because there are many things it could be.

Jock itch: See a physician as it is difficult to diagnose skin lesions without an exam. My guess is tinea cruris, a fungal infection of the groin, buttocks and genital area a. .Jock itch causes an itchy, red, often ring-shaped rash in these warm, moist areas of your body. Jock itch gets its name because it is common in people who sweat a lot, as do athletes. It usually respond to topical anti fungals cream.