Dr. Sandra Lee is a Southern California dermatologist who’s known as Dr. Pimple Popper. A couple of years ago she opened an Instagram account and very quickly discovered that her most popular posts were not selfies or cute pictures of her kids but rather work-related videos of her popping zits, cysts, and blackheads. They are totally gross. And totally fascinating at the same time.With nearly 1 million Instagram followers she’s clearly tapped into something people can’t stop watching! Are you a popaholic?