This worked for my teen.
1) Derm. He was prescribed Epiduo and antibiotics to be taken as needed. He does not take the antibiotics
2) Nizorol - anti dandruff shampoo. Helps with chest and back acne too.
3) Having two different towels - one for head, one for body. Make sure that water while washing scalp does not go over your body
4) Having seperate comb and brush and washing it with shampoo too.
5) Laundering in the hottest water and with oxyclean and changing the bed linen and pillow covers every week.
6) Daily shower.
7) Using an aloe based moisturizer for body and face. We buy this...
https://www.amazon.com/Patanjali-Saundarya-Aloe-Kesar-Chandan/dp/B06X9NNQ21/ref=asc_df_B06X9NNQ21/
8) Using a body wash with benzoyl peroxide