A stye is a lump on your eyelid caused by a bacterial infection. Improperly sanitized contact lens, eye makeup, and conditions like diabetes and rosacea can increase your risk of a stye.

But let’s be clear: “True pimples are not common close to the eyes,” says Dr. Akhavan. “Typically, it’s going to be a stye or one of the other more traditional eyelid ... Because there are so many ...