Medically reviewed by William Truswell, MD An ingrown hair cyst looks like a small red bump and often causes no pain.You can treat ingrown hair cysts at home by keeping the area clean and using a warm ...

A cyst is a sac of tissue containing fluid or air that can form in many areas of the body. Cysts often do not need to be removed unless they are causing pain or other problems. There are several ...

Medicare covers sebaceous cyst removal when medically necessary. This includes cases where the cyst causes bleeding or pain, shows signs of inflammation or infection, or has recently gotten larger.