Emergency department management of rash and fever in the pediatric patient.

Rash and fever are some of the most common chief complaints presenting to the emergency department. The evaluation of rashes in the febrile pediatric patient includes a broad differential diagnosis and use of the history and physical examination to identify red flags, such as hemodynamic instability, erythroderma, desquamation, petechiae/purpura, mucous membrane involvement, and severe pain, that should increase suspicion for worrisome disease. This issue reviews characteristics of common rashes as well as rarer, potentially life-threatening rashes, to guide management and treatment and improve patient outcomes.