The lesions of gram-positive folliculitis are tender and erythematous.
Diabetes and obesity may predispose to gram-positive folliculitis.
Treatment with cephalosporin antibiotics is generally effective.
Gram-negative folliculitis with Pseudomonas folliculitis, produces painful pustules that typically affects the trunk.
This infection is usually self-limited and often clears in 2 to 10 days, so that treatment is not necessary in most cases.
For patients with persistent gram-negative folliculitis infection and for those who are immunosuppressed, treatment with an oral fluoroquinolone is recommended.
Fungal folliculitis primarily affects young women, and appears as asymptomatic, follicular papules and pustules on upper back and chest, upper arms, and neck.
The eruption may appear to be acneiform and monomorphous.
Treatment for fungal folliculitis include antifungal body washes, sulfur based antibiotic washes, oral antifungal agents, and topical antifungal cream.
Eosinophilic pustular folliculitis appears as erythematous, painful, intensely pruritic papulopustules that episodically appear on the face, back, and upper extremities.
The lesions usually last 7 to 10 days and recur every 3 to 4 weeks.
It is considered idiopathic in etiology.
About 5 times more common in men than in women.
Occurs with systemic diseases, such as AIDS and chronic lymphocytic leukemia.
Eosinophilic pustular folliculitis associated with minocycline, carbamazepine, and allopurinol.
Treatment includes topical therapy with corticosteroids, UVB phototherapy, psoralen-UVA, and indomethacin.
Steroid-induced folliculitis appears as acneiform, usually monomorphous lesions, which resolve with discontinuing the steroids.