The sweat, the dust, the oil from last week's class, whatever your feet picked up since you changed into your yoga pants...there's a whole colony of pore-clogging bacteria living in your yoga mat just waiting to cause body acne.

Wipe down your mat after every use to prevent back acne. Stash some mat wipes in your gym bag to wipe down communal mats (We like Herban Essentials towelettes, $16 ). Alternatively, pick up a pre-bottled yoga mat spray, or make your own cleaner by mixing tea tree oil or vinegar with water in a spray bottle. Once a month, throw your mat in the washer without detergent for a thorough scrub down.

If you tend to be oily and frequently have bacne breakouts, Zeichner suggests spritzing your back with a spray containing salicylic acid, like Glo Therapeutics Back Acne Treatment , $33.50, to remove excess oil until you can hit the showers. We also like AcneFree Body Clearing Acne Spray, $10.99, a quick-acting formula that contains 2 percent salicylic acid, as well as glycolic acid, vitamin B3 and aloe.

Curve-hugging anything can be super-flattering, but the minimal personal space between the fabric and your skin traps sweat. And while it's stuck under all that Lycra and polyester, sweat starts to make friends with all the other things on your skin (think: oil, dirt and bacteria). Before you know it, you've created the perfect breeding ground for inflammation (and body acne) under your LBD.

Zeichner recommends swiping your skin with medicated wipes like Origins Spot Remover Acne Treatment Pads, $28.50, before getting dressed to minimize the bacteria that causes back acne.

It's totally normal to reach for your acne-fighting face wash or lotion when you're trying to get rid of back acne, but unfortunately, the active ingredient in these products is tailored to the more sensitive skin (and smaller pores) on your face. Rubbing these weaker concentrations on you body won't do much.

Instead, pick up products that are specifically formulated for chest acne and back acne, like Clearasil Ultra Rapid Action Face, Chest & Back Lotion, $10. According to Zeichner, salicylic acid should be 2 percent whereas benzoyl peroxide should hit 10 percent. There's also Proactiv's new Deep Cleansing Body Brush, $45, a long-handled tool that makes it a cinch to treat hard-to-reach breakouts. Use the cleansing head to scrub with your body wash of choice, then when you're out of the shower fasten a treatment pad (like Proactiv's Clear Zone Body Pads, $22), to zap your bacne with salicylic acid.

If you have sensitive skin, your fresh load of laundry could be causing your back acne. Many fabric softeners and dryer sheets contain a waxy softening agent that coats clothing and can also clog pores.

Skip the dryer sheets and ditch fabric softener. Many laundry detergents these days already have fabric softener added to their formula, so doubling up could be too much for your skin. If your bacne breakouts persist, consider looking into more natural, fragrance-free options.