In a new Instagram video, Dr. Pimple Popper—aka, dermatologist and TLC host Dr. Sandra Lee, MD—squeezes a rock-like growth, known as a sialothiasis, from a patient's lip.

An oral (mouth) piercing is a small hole in your tongue, lip, cheek, or uvula (the tiny tissue at the back of your throat) so you can wear jewelry. Types of Oral Piercings.