Whether or not you find a way to make ACV work for your routine, Dr. Lenzy emphasizes that you should always seek professional help if your scalp condition worsens or persists. "You can't always trust what you see on Google," she says. "Sometimes, you might think you have one condition, but you really can't be sure until you see an expert." So if dandruff's got you down, save your nose the agony by stepping away from the ACV, and talk to a professional instead (or try one of these expert-approved dandruff shampoos first).