Cystic acne is a more advanced case of a pimple. Millions of people around the world have some kind of acne or another, but cystic acne is one of the more severe types out there. It develops from a regular pimple, also known as a pustule, by rooting itself deeper within the skin and forming a painful sore known as a cyst. These cysts can vary in size and color from small and pink to large and a dark purple. In severe cases, multiple cysts in the facial area and on the body can be extremely painful.
