The spots that linger after a pimple has healed are caused by inflammation that has disrupted the skin's natural healing process. "When your skin is opened up (like when you pop a pimple) and then closes back together, you can get abnormal pigmentation, texture, and tone that looks different from the rest of your skin. Sometimes the broken blood vessels that remain after an acne lesion fades can result in a mark," says Dr. Bowe. For a number of people who are able to refrain from picking, inflamed pimples or blemishes can still leave a dark brown or red mark — but these naturally fade over the course of a few months, notes dermatologist Heather C. Woolery-Lloyd, MD.
While SPF is a must, some sunscreens can trigger breakouts. You want to look for oil-free and non-comedogenic formulas that won't clog pores,” says Karen Hammerman, MD, from Schweiger Dermatology. Options from brands like Elta MD and Peter Thomas Roth, which are recommended by the pros, are specifically tested on acneic skin so you can get your dose of SPF without having to worry about clogged pores.
Take an extra five minutes before hopping on the treadmill to completely wash your face and remove your makeup to minimize the risk of breakouts. "Sweat is released through visible pores in the skin," says dermatologist Dr. Janelle Vega. "When makeup covers those pores, that barrier doesn't allow the sweat to make it to the surface of the skin, which can lead to clogged pores. The trapped debris and bacteria are a perfect breeding ground for acne bumps and zits."
Moderation and regularity are good things, but not everyone can sleep eight hours, eat three healthy meals per day, and drink plenty of water a day. Probably the most useful lifestyle changes one can make is to never to pick or squeeze pimples. Playing with or popping pimples, no matter how careful and clean one is, nearly always makes bumps stay redder and bumpier longer. People often refer to redness as "scarring," but fortunately, it usually isn't permanent. It's just a mark that takes months to fade if left entirely alone.