Hi,
Welcome to the forum. I am really glad to help you out. Wash the acne prone areas only twice a day as frequent washing can irritate the skin. Using a gentle cleanser does help. You can use an over the counter acne cream which contains benzoyl peroxide or salicylic acid to help dry the excess oil.
Avoid tight fitting clothing as that tends to trap heat & moisture and can aggravate acne. Shower after strenuous work or exercise as the dirt & bacteria tend to get entrapped and need to be washed off as they can precipitate acne. I sincerely hope these measures will help you. Take care.