I don’t have this exact issue, but I have a lot of body acne and I’d recommend the panoxyl 10% body wash! Just be sure to rinse really well bc it can bleach your clothes if you don’t get it all off. Other than that, just make sure you’re washing your bras every 1-3 wears, taking off sweaty bras ASAP when you get home, and not rewearing sweaty bras!