Kaposi's varicelliform eruption is a skin disease that is often referred to as eczema herpeticum. This condition is typically caused by the herpes simplex virus, and it usually affects people who have pre-existing skin conditions such as atopic dermatitis. This condition is characterized by the development of many small, blister-like lesions on the skin that are often accompanied by itching and other symptoms. Other synonyms for Kaposi's varicelliform eruption include disseminated herpes simplex, eczema vaccinatum, eczema coxsackium, and Herpes simplex virus dermatitis. Treatment for this condition typically includes antiviral medications and topical creams to help relieve symptoms and prevent further infection.