For the last 6 months, I have had a rash in my groin area (crease where light meets torso, folds under belly skin, base of penis) and now it has appeared on the back of my leg in the crease behind the knee. Itchy as hell, especially at night. Jock itch medication didn t work. Hydrocoritzone / antibiotic ointment didn t work, neither did baby powder. It s driving me crazy. Anything else I can try or should I go see a doctor?