Eczema herpeticum is an acute dermatoses caused by herpes simplex virus type 1 in atopic dermatitis patients, and is considered a dermatology emergency. Eczema herpeticum occurs in less than 3% of atopic patients. We report a patient with a history of atopic dermatitis who presented to an emergency department with eczema herpeticum. He was admitted and treated with antiviral medications with good outcome. We investigated filaggrin null mutations in the patient and his family and correlate them with the severity of the disease. We present the first Mexican patient with eczema herpeticum, atopic dermatitis and the presence of R501 X and 2282del4 filaggrin null mutations.
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