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Definition
By Mayo Clinic staff
Folliculitis occurs when hair follicles become infected, often with Staphylococcus aureus or other bacteria. Certain variations of folliculitis are also known as hot tub folliculitis and barber's itch. Severe infections can cause permanent hair loss and scarring, and even mild folliculitis can be uncomfortable and embarrassing.
The infection usually appears as small, white-headed pimples around one or more hair follicles — the tiny pockets from which each hair grows. Most cases of folliculitis are superficial, and they may itch, but on occasion they're painful too. Superficial folliculitis often clears by itself in a few days, but deep or recurring folliculitis may need medical treatment.
- Folliculitis. American Osteopathic College of Dermatology. http://www.aocd.org/skin/dermatologic_diseases/folliculitis.html. Accessed July 2, 2011.
- Folliculitis. The Merck Manuals: The Merck Manual for Healthcare Professionals. http://www.merckmanuals.com/professional/sec11/ch129/ch129e.html. Accessed July 2, 2011.
- Baddour LM. Folliculitis. http://www.uptodate.com/home/index.html. Accessed July 5, 2011.
- Bacterial infections. In: Habif TP. Clinical Dermatology: A Color Guide to Diagnosis and Therapy. 5th ed. Edinburgh, U.K.; New York, N.Y.: Mosby Elsevier; 2010. http://www.mdconsult.com/books/page.do?eid=4-u1.0-B978-0-7234-3541-9..00018-3&isbn=978-0-7234-3541-9&uniqId=269355909-8#4-u1.0-B978-0-7234-3541-9..00018-3. Accessed June 14, 2011.
- Hot tub rash (pseudomonas dermatitis/folliculitis). Centers for Disease Control and Prevention. http://www.cdc.gov/healthywater/swimming/rwi/illnesses/hot-tub-rash.html. Accessed July 2, 2011.
- Pseudofolliculitis barbae. The Merck Manuals: The Merck Manual for Healthcare Professionals. http://www.merckmanuals.com/professional/sec11/ch134/ch134d.html?qt=pseudofolliculitis barbae&alt=sh. Accessed July 17, 2011.
- Browning J, et al. Cellulitis and superficial skin infections. In: Long SS. Principles and Practice of Pediatric Infectious Diseases Revised Reprint. 3rd ed. Philadelphia, Pa.: Churchhill Livingstone Elsevier; 2009. http://www.mdconsult.com/books/page.do?eid=4-u1.0-B978-0-7020-3468-8..50078-X--cesec14&isbn=978-0-7020-3468-8&uniqId=269355909-9#4-u1.0-B978-0-7020-3468-8..50078-X--cesec14. Accessed July 17, 2011.
- Rajendran P, et al. HIV-associated eosinophilic folliculitis. http://www.uptodate.com/home/index.html. Accessed July 5, 2011.
- Ferri FF. Folliculitis. In: Ferri FF. Ferri's Clinical Advisor 2011: Instant Diagnosis and Treatment. Philadelphia, Pa.: Elsevier Mosby; 2010. http://www.mdconsult.com/books/page.do?eid=4-u1.0-B978-0-323-05610-6..00015-9--s1050&isbn=978-0-323-05610-6&uniqId=269355909-12#4-u1.0-B978-0-323-05610-6..00015-9--s1100. Accessed July 17, 2011.
- Craft N, et al. Superficial cutaneous infections and pyodermas. In: Wolff K, et al. Fitzpatrick's Dermatology in General Medicine. 7th ed. New York, N.Y.: The McGraw-Hill Companies; 2008. http://www.accessmedicine.com/content.aspx?aID=2994673. Accessed July 17, 2011.
- Superficial fungal infections. In: Habif TP. Clinical Dermatology: A Color Guide to Diagnosis and Therapy. 5th ed. Edinburgh, U.K.; New York, N.Y.: Mosby Elsevier; 2010. http://www.mdconsult.com/books/page.do?eid=4-u1.0-B978-0-7234-3541-9..00022-5--s0890&isbn=978-0-7234-3541-9&sid=1185000175&uniqId=269355909-11#4-u1.0-B978-0-7234-3541-9..00022-5--s0970. Accessed July 15, 2011.
- Gibson LE (expert opinion). Mayo Clinic, Rochester, Minn. Aug. 4, 2011.
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