Acne can affect people well beyond their teenage years, appearing as blackheads, whiteheads, papules, pustules, or deep cysts. While squeezing might seem tempting, it can worsen inflammation and leave ...

Gram-negative folliculitis (GNF) is one of the most common mimics and complications of acne and acne rosacea. First described by Fulton in 1968, 1 GNF in acne patients is a relatively rare ...

Pustule A pus-filled pimple that often has a yellow or white center. Whitehead Similar to a blackhead, a whitehead is a noninflammatory pimple that forms when oil and skin cells block the opening of a ...