On the other hand, when there's too much collagen, it results in raised scars." Acne scars fall under two broad categories: depressed scars and raised scars. Depressed acne scars: Also known as ...

Types of acne, including whiteheads, may also occur due to different kinds of triggers, such as: Addressing whiteheads on the nose involves a combination ... minimizing the risk of skin damage or ...

Acne is a very common skin problem, one that affects 50 million people, including teens and adults, in the United States annually, according to the American Academy of Dermatology (AAD).