Cystic acne is the largest and most painful form of acne, causing cysts deep beneath the skin. Cystic acne can be caused by hormones, genetics, and lifestyle factors like diet and stress. To treat ...

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 to ...