Gram-Negative Folliculitis

[Guide]

Gram negative folliculitis is an inflammation of follicles caused by a bacterial infection that can result from long-term antibiotic treatment. Patients who are being treated with antibiotics for severe acne may develop Gram negative folliculitis.


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The word “Gram” refers to a blue stain used in laboratories to detect microscopic organisms. Certain bacteria do not stain blue and are called “Gram negative. Gram-negative folliculitis is an acne condition caused by Gram-negative organisms. Usually people who had Gram-negative folliculitis are they who had complication with acne vulgaris and rosacea, and also develops in patients who have received systemic antibiotics for prolonged periods. LEARN MORE • REQUIRES SUBSCRIPTION