11. You're wearing a lot of hats or constantly touching your face. Anything that can trap sweat and bacteria against your skin and clog your pores, like the lining of a tight hat, can cause zits to crop up. Also, touching your face or resting your chin in your hand while you're sitting at your desk can transfer bacteria from your hand onto your face and brew blemishes. (Tip via Dr. Downie.)
"Other good over-the-counter options are benzoyl peroxide-containing agents," says Dr. Engelman. "I like La Roche-Posay Effaclar Duo. Benzoyl peroxide is anti-microbial, attacking the bacteria that is associated with acne. The La Roche Posay product also contains Lipohydroxy acid (LHA), which serves as an exfoliator to smooth roughness and even out skin texture."
"Fluctuation in hormones, such as before one's menstrual cycle, is the main cause," explains dermatologist Julia Tzu, M.D., of Wall Street Dermatology. Specifically, androgens (male hormones) like testosterone. This usually rears its ugly head in the form of deep (painful) cystic acne around the chin, neck, and back, says dermatologist Rebecca Kazin, M.D., F.A.A.D., of the Washington Institute of Dermatologic Laser Surgery and the Johns Hopkins Department of Dermatology.
Melissa Conrad Stöppler, MD, is a U.S. board-certified Anatomic Pathologist with subspecialty training in the fields of Experimental and Molecular Pathology. Dr. Stöppler's educational background includes a BA with Highest Distinction from the University of Virginia and an MD from the University of North Carolina. She completed residency training in Anatomic Pathology at Georgetown University followed by subspecialty fellowship training in molecular diagnostics and experimental pathology.