26th April 2024

A 6-year-old boy presents with a 3-day history of fever, fatigue, and an itchy rash.

A 6-year-old boy presents with a 3-day history of fever, fatigue, and an itchy rash. His mother reports that the rash began as red spots, which have now progressed to fluid-filled blisters. The rash started on his trunk and has spread to his face and extremities. On examination, the boy has a temperature of 38.5°C. There are multiple vesicles at different stages of healing, some crusted, distributed across his trunk, face, and limbs.

Which of the following is the most likely diagnosis?