Folliculitis

Folliculitis
Folliculitis, Fungal; Pustular Diseases Image courtesy of Professor Peter Anderson DVM PhD and published with permission © PEIR, University of Alabama at Birmingham, Department of Pathology
ICD-10	L73.8
ICD-9	xxx
DiseasesDB	31367
eMedicine	DERM/159

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Jesus Rosario Hernandez, M.D. [2].

Overview

Folliculitis is the inflammation of one or more hair follicles. The condition may occur anywhere on the skin.

Causes

Most carbuncles and furuncles and other cases of folliculitis develop from Staphylococcus aureus.

Folliculitis starts when hair follicles are damaged by friction from clothing, blockage of the follicle, or shaving. In most cases of folliculitis, the damaged follicles are then infected with the bacteria Staphylococcus (staph).

Iron deficiency anemia is sometimes associated with chronic cases

• Sycosis barbae or Barber's itch is a staph infection of the hair follicles in the bearded area of the face, usually the upper lip. Shaving aggravates the condition.

• Tinea barbae is similar to barber's itch, but the infection is caused by the fungus T._rubrum.

• Pseudofolliculitis barbae is a disorder occurring primarily in men of African descent. If curly beard hairs are cut too short, they may curve back into the skin and cause inflammation.

• Hot tub folliculitis is caused by the bacteria Pseudomonas aeruginosa often found in new hot tubs. The folliculitis usually occurs after sitting in a hot tub that was not properly cleaned before use. Symptoms are found around the body parts that sit in the hot tub -- typically the legs, hips and buttocks and surrounding areas. Symptoms are typically amplified around regions that were covered by wet clothing, such as bathing suits.

• Drug Side Effect: Betamethasone valerate, Betamethasone dipropionate, Clocortolone pivalate, Desoximetasone, Diflorasone, Sorafenib, Mometasone furoate

Symptoms

• rash (reddened skin area)
• pimples or pustules located around a hair follicle
  • may crust over
  • typically occur on neck axilla, or groin area
  • may be present as genital lesions
• itching skin

Physical examination

Gallery

Extremities

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Folliculitis Of Barbae

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  Folliculitis Of Barbae.
  With permission from Dermatology Atlas.

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  Folliculitis Of Barbae.
  With permission from Dermatology Atlas.

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  Folliculitis Of Barbae.
  With permission from Dermatology Atlas.

Folliculitis cheloidalis

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  Folliculitis Cheloidalis.
  Used with permission of Dermatology Atlas

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  Folliculitis Cheloidalis.
  Used with permission of Dermatology Atlas

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  Folliculitis Cheloidalis.
  Used with permission of Dermatology Atlas

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  Folliculitis Cheloidalis.
  Used with permission of Dermatology Atlas

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  Folliculitis Cheloidalis.
  Used with permission of Dermatology Atlas

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  Folliculitis Cheloidalis.
  Used with permission of Dermatology Atlas

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  Folliculitis Cheloidalis.
  Used with permission of Dermatology Atlas

Treatment

1. Topical antiseptic treatment is adequate for most cases
2. Some patients may benefit from systemic flucloxacillin