You have to wonder whether Dr. Pimple Popper (née Dr. Sandra Lee) is a sadist. Yes, she has devoted her career to helping the lump-afflicted. Yes, she wields a local anesthetic to numb wherever on the body she goes in to dig. But not only is she unsparing in the gory details of her work, which routinely finds pus flowing like water out of a broken damn, she has the tendency of casually underlining how much whatever she’s extracting looks or smells like food.