It'll be OK, Rich. Kids are tough little critters. The fever is helping his body to fight off whatever he picked up.
Here is some good science-based information on fever in children, and what to do about it:
https://health.clevelandclinic.org/k...when-to-relax/
This is not science-based, but I am of the opinion that ice cream is good for fever. Give him a little scoop from me.
Sending strong thoughts your way and his.