Eczema herpeticum is a serious skin infection caused by the herpes simplex virus, which mainly affects people with atopic dermatitis.[2] It is characterized by the sudden appearance of vesicles and "tempted" erosions at the sites of atopic dermatitis.[2] It is an uncommon complication of atopic dermatitis with a typical recognizable appearance.[3] Risk factors include severe atopic dermatitis, frequent allergies, asthma, early onset dermatitis, and previous skin infections.[2] Treatment of mild cases consists of oral acyclovir or valacyclovir for 7 to 21 days or until lesions crust over; the dose of acyclovir is 30–60 mg/kg/day in three divided doses in children and 400 mg three times a day in adults.[2] Critically ill patients require intravenous fluids, electrolyte replacement, wound care, pain control, and nutritional support.[2] Lesions are infectious until crusted over, so frequent hand washing and hospital contact precautions are recommended.[2] Monitor for secondary bacterial infections and treat with systemic antibiotics according to culture.[2]