Acne vulgaris

DDx

Acne rosacea (face)
Bacterial folliculitis (face or trunk)
Tinea (face or trunk)
Topical steroid use (face)
Perioral dermatitis (face)
Pseudofolliculitis barbae (ingrown beard hairs)
Miliaria (heat rash) (trunk)
Eosinophilic folliculitis (trunk)
Hyperandrogenic states in women
“Hot tub” folliculitis (trunk)

See related DDx

Pustules

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