What is cystic acne?
Cystic acne is one of the most difficult acnes to treat. Think of it as a much more persistent pimple. Like pimples, cystic acnes are caused by clogged pores, dead skin cells, and bacteria, only that it goes much deeper into the skin. The result is a red bump filled with pus that is often painful when touched. The most common victims of this type of acne are teenagers or those in their early twenties. Areas like the face, chest, shoulders, arms, and back are commonly affected.