Now that everyone and their grandmother is obsessed with sheet masks, another K-beauty innovation is popping up everywhere: acne patches. Instead of popping and picking your blemishes, slap a pimple patch on top of it. Unlike spot treatments, the sticker won't leave your skin dry and flaky. Most are small, circular hydrocolloid bandages, meaning they absorb fluid from the pimple, explains Debra Jaliman, a board-certified dermatologist and assistant professor of dermatology at Icahn School of Medicine at Mount Sinai in New York City.