Boils are painful, pus-filled, and are caused by infections like Staphylococcus aureus. Cysts are painless, non-infectious growths filled with keratin or other substances. Antibiotics may treat boils ...

A painful bump on or around the ear may be a boil, which occurs when a bacterial skin infection develops in a hair follicle or oil gland. Over time, pus collects in the lump. Boil sometimes go away, ...

What Is a Dentigerous Cyst? A dentigerous cyst, also called a follicular cyst, is the second most common type of jaw (odontogenic) cyst. It's a fluid-filled sac that develops in your jawbone over a ...