10-Month-Old With Macular Spreading Rash

January 15, 2015

A macular rash has been spreading for 5 days after the cheerful child started amoxicillin therapy. What’s the most likely cause?

This 10-month-old boy presents with a red, macular, spreading rash that developed 5 days after he started taking amoxicillin for otitis media.

 

What’s the most likely cause?