When is antiviral treatment recommended for eczema herpeticum?

Eczema herpeticum, also called Kaposi varicelliform eruption, occurs when herpes simplex infects skin affected by eczema or another barrier problem. It can cause clusters of painful, similar-looking blisters or punched-out sores, rapidly worsening irritation, fever, and feeling unwell. This is different from an ordinary eczema flare. A clinician may arrange urgent antiviral treatment, sometimes through a hospital service, and may examine the eyes because infection there can threaten vision.

Seek same-day medical advice for a new painful blistering eruption over eczema, especially if it is spreading or accompanied by fever. Do not scratch, pop blisters, or apply unfamiliar creams while waiting. Wash hands after contact, avoid sharing towels, and keep the affected person away from close skin contact with newborns, people with eczema, and anyone with weakened immunity until assessed. Take any prescribed antiviral exactly as directed.

Go to urgent care for eye pain, light sensitivity, blurred vision, facial swelling, severe headache, confusion, weakness, breathing trouble, dehydration, or rapidly worsening skin pain. Do not wait for a routine dermatology appointment if the eruption is spreading quickly or the person is systemically unwell. Tell the service about eczema, immune-suppressing medicines, and any recent cold sore exposure.

Ask whether the eruption needs eye review, which antiviral route is appropriate, how to continue eczema care safely, how long to avoid close contact, and which changes should trigger immediate reassessment.