Thank you for your query on Healthcare Magic.
Your child seems having this high fever
most probably due to a virus.
The high grade fever is the cause for the chills
If the high temperature is taken care, chills will subside.
You can give Tylenol
every 6 th hourly depending on the presence of fever, and after this you can do tepid sponging with lukewarm water if there is high grade fever.
Give plenty of oral liquids and water.
Give soft diet
to eat and provide adequate rest.
Consult your Pediatrician
for the examination of the child to look for any focus of infection and for treatment advise.
Hope I have answered your query.