A Child’s Unexpected Rash

A child develops a widespread maculopapular rash after taking amoxicillin for pharyngitis. Explore the Differential Diagnosis and key investigations.

Amoxicillin rash in infectious mononucleosis


A 7-year-old girl presented with an itchy rash while taking amoxicillin for pharyngitis. Physical exam showed purulent tonsils, along with a maculopapular rash involving her face, trunk, arms, and legs. What is the most likely diagnosis?

What is the most likely diagnosis?

Amoxicillin rash in infectious mononucleosis
Guttate psoriasis
Hand, foot, and mouth disease
Scarlet fever
Serum sickness-like reaction

Amoxicillin rash in infectious mononucleosis, Epstein-Barr Virus, Infectious Mononucleosis, Maculopapular Rash, Pediatrics

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