My 3 year old child got burnt at school when i was attending a parents evening by a cooker which was in the class room is there anything i can do about the situation

DO NOT put ice!!
Applying ice will only create a blister!!

Putting oils on the burn will help the burnt cells regain their strength faster. 
Make sure your child does not touch the burn or the healing process will only take longer. 

Get Well! Good Luck! :)

126 pi or 615.75 (pi x 14^2)