Home Remedies For Back Acne Sweat It Out Your sweat is a concoction of oil, dead skins cells, and bacteria that clogs pores. That's why it's essential to rinse off after a particularly sweaty day. The good news is that perspiring is a great way to purge bacteria from your pores, but make sure that you wash away those impurities away so it's not reabsorbed through the skin. If you can't get to a shower right after exercising, don't fret — just stash an oil-controlling body spray like this Etsy