It could still be a viral fever
Give him paracetamol at 15 mg/ kg / dose of temperature is more than 100.4 F
Otherwise tepid sponging is enough.
Keep him hydrated - ask him to drink ors or electral as much as he can.
Next Steps
if he doesn't drink ors - give him rice water kanjee,lemon water with salt and
sugar, salted buttermilk
Health Tips
report if there are warning signs like lethargy, persistent vomiting, consultation is better.