Epidermoid cyst signs and symptoms include:  A small, round bump under the skin, usually on the face, neck or trunk A tiny blackhead plugging the central opening of the cyst A thick, yellow, smelly material that sometimes drains from the cyst Redness, swelling and tenderness in the area, if inflamed or infected 
epidermoid cyst signs symptoms include:  small  round bump skin  face  neck trunk tiny blackhead plugging central opening cyst thick  yellow  smelly material drains cyst redness  swelling tenderness area  inflamed infected 
epidermoid cysts