Type of acne

Acne is a group of skin rashes that have different causes.

Acne vulgaris
most commonly experienced around puberty, typically of the face and shoulders/chest

Acne rosacea
a red rash predominantly on the face

Acne keloidalis nuchae (Pseudofolliculitis nuchae)
a rash caused by shaving

Acne conglobata (Hidradenitis suppurativa)
chronic abscesses or boils of sweat glands and hair follicles; in the underarms, groin and buttocks, and under the breasts in women

Acne cosmetica
acne caused by cosmetics

Acne fulminans
an extreme form of acne conglobata

Acne medicamentosa
acne caused by starting or stopping a medicine Chloracne

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