Which lab studies are used to exclude gram-negative folliculitis in the workup of acne vulgaris?

Updated: Mar 26, 2019
  • Author: Jaggi Rao, MD, FRCPC; Chief Editor: William D James, MD  more...
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Skin lesion cultures to rule out gram-negative folliculitis are warranted if the patient does not respond to long-term antibiotic treatment or improvement with antibiotics is not maintained. [33]

Also see the Medscape Acne Resource Center.

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