Cystic-acne sufferers know that a cyst is not the same beast as your garden-variety pimple. While whitehead pimples sit on the surface of the skin (which, though unsightly, means they’re easier ...

Of all types of acne, cystic acne is the most severe form of acne. It affects fewer people but it can be incredibly painful. Cystic acne develops when sebum, an oily substance that lubricates your ...