Epidermoid (ep-ih-DUR-moid) cysts are noncancerous small bumps beneath the skin. Epidermoid cysts can appear anywhere on the skin, but are most common on the face, neck and trunk. Slow growing and often painless, epidermoid cysts rarely cause problems or need treatment.
Epidermoid cyst signs and symptoms include: • A small, round bump under the skin, usually on the face, trunk or neck • A tiny blackhead plugging the central opening of the cyst • A thick, yellow, foul-smelling material that sometimes drains from the cyst • Redness, swelling and tenderness in the area, if inflamed or infected.
Small epidermoid cysts known as milia are common in the neonatal period Injection. This treatment involves injecting the cyst with a medicine that reduces swelling and inflammation. • Incision and drainage. With this method, your doctor makes a small cut in the cyst and gently squeezes out the contents