Last reviewed: 2 Feb 2021
Last updated: 21 Jun 2018
Summary
Differentials
Common
- Impetigo
- Folliculitis caused by Pseudomonas
- Folliculitis caused by Staphylococcus aureus
- Pityrosporum folliculitis
- Herpes simplex virus
- Dermatophytosis: tinea barbae
- Dermatophytosis: tinea cruris
- Dermatophytosis: tinea pedis
- Dermatophytosis: tinea corporis
- Acne vulgaris
- Eosinophilic folliculitis (Ofuji syndrome/disease)
- Subcorneal pustular dermatosis (Sneddon-Wilkinson disease)
- Infantile acropustulosis (IA)
- Fire ant bites
- Acrodermatitis continua (pustular acrodermatitis, acrodermatitis continua suppurativa Hallopeau, dermatitis perstans, and dermatitis repens Crocker)
- Pustular drug rash secondary to epidermal growth factor receptor (EGFR) inhibitors
- Acute generalized exanthematous pustulosis (AGEP)
- Generalized pustular psoriasis (von Zumbusch type)
- Transient neonatal pustular melanosis
- Pustulosis palmaris et plantaris (PPP)
Uncommon
- Gram-negative folliculitis
- Folliculitis caused by herpes and other viruses
- Secondary syphilis
- Infantile scabies
- Candidal infection and disseminated candidiasis
- Perioral dermatitis
- Behcet disease
- Erythema toxicum neonatorum
- Pseudofolliculitis barbae
- Neonatal cephalic pustulosis (neonatal acne)
- Miliaria rubra ("prickly heat")
- Pustular rosacea
- Reactive arthritis
- Drug rash with eosinophilia and systemic symptoms (DRESS)
- Corticosteroid-induced rosacea-like eruption/corticosteroid acne
- Ulcerative or typical pyoderma gangrenosum
- Atypical form of pyoderma gangrenosum (APG)
- Orf
- Amicrobial pustulosis of the folds (APF)
- Erosive pustular dermatosis
Contributors
Authors
Dermatologist
Texas Dermatology
Houston
TX
Disclosures
AA declares that she has no competing interests.
Peer reviewers
Physician
Department of Dermatology
Kaiser Permanente Vallejo Medical Center
Vallejo
CA
Disclosures
PM declares that she has no competing interests.
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