Localized rash characterized by grouped vesicles or pustules on an erythematous base that is caused by herpes simplex virus infection. The disease is Monarch Disease Ontology id MONDO_0004712 (herpes simplex dermatitis). Also known as: Herpes simplex dermatitis, Herpes simplex virus dermatitis, Simplexvirus caused dermatitis, Simplexvirus dermatitis, eczema herpeticum (disorder) [ambiguous].