Most Common Types of Acne

he most common types of acne occur in the form of whiteheads, blackheads, papules, and pustules. Other forms of acne exist, but either being too rare or too severe for normal treatments, we won't treat them in this article. Some forms of acne, such as cystic acne, don't respond well to normal acne

treatments. Such severe forms require the immediate attention of a dermatologist to avoid permanent scarring. In discussing the following acne formations, the basic formation of each remains the same. Dead skin cells combined with excess sebum cause a blockage creating acne of varying degrees of severity and visibility.