6 Surprising Things Making Your Acne Flare Up (and What to Do About It)

More than 50 percent of women in their twenties, 26 percent of thirtysomethings, and 25 percent of 40- to 49-year-olds are breaking out, according to the American Academy of Dermatology. "Adult acne is skyrocketing," says Dendy Engelman, M.D., a dermatologist in New York City, who says she's seeing record numbers of adults who are plagued with breakouts. "It's not just an episode here and there; it's chronic."

On the bright side, because of the growing problem, there's more research being done to figure out what's behind these skin issues and the most effective ways to treat acne flare ups.

Read on for the latest science—and solutions.