A6-year-old boy was well until this morning when he awoke with papulovesicular eruptions over his arms, hands, legs, and feet. he refuses to eat or drink. what is the most likely etiology of his symptoms?

The most likely etiology is that the boy has a Coxsackie virus.

Explanation:

The symptoms of a Coxsackie virus infection are painful blisters on the throat, hard palate, tongue, and inside the mouth that makes the kid refuse to drink or eat. Also, the blisters on the arms, hands, soles of the feet, and legs. The infection symptoms start abruptly, like in this case, from one day to the other.