Previously healthy 9 year old boy wok e up with itching pain | Figure 1

Previously healthy 9 year old boy woke up with itching painful lesions on back with a high fever (39c plus). Visited hospital and given amoxyclav and cotrimoxazole. Erythematous rash has started spreading and now on day 5 fever continues unabated.

Examination: temp 39 with rash as above. Axillary nodes prominent, tender. Inguinal nodes enlarged. No anemia or splenomegaly.

I would be grateful for suggestions.

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