Acne/Breakouts On Forehead

Over the last 6-9 months my forehead has developed acne. This is a result of working out and sweating. If I don't workout for a few days my forehead begins to clear up. I don't want to give up my cardio workouts but this is very frustrating. I wash my forehead at least twice a day with Acne soap and try not to rub it with a towel while working out. I'm going to see my doctor this week for a prescription unless someone can suggest a remedy. Someone said I should try hydrogen peroxide but that didn't work.