An epidermoid cyst is a lump under the skin. Epidermoid cysts usually do not require treatment, unless a person wants to have them removed due to cosmetic reasons, or if the cyst becomes infected.
In Dr. Pimple Popper's new Instagram video, she helps a patient with a bunch of eruptive vellus hair cysts. She says these pimples are filled with "birdseed." Dr. Pimple Popper uses her fingers to ...