Exercise-Induced Acne. Here's How You Prevent It...

There is such a thing as exercise-induced acne. It's called "acne mechanica" and it's caused by friction and pressure on the skin caused by equipment and workout clothes—not just the sweat and general gym gook. And, luckily, there are a couple of ways you can help prevent it.

Rule one: Wash your self as soon as you have finished exercising to remove sweat and bacteria.

If you're playing a sport or doing an activity like biking that requires a helmet or you tend to use equipment on your body like a heart-rate-monitor strap, give it a once-over with a disinfectant spray before you get your sweat on. This will at least help to kill any bacteria though could get into your pores while the friction is taking place.