keep hydrated with body coolant fruit juice,tender coconut,butter milk etc,alovera,calapure etc creams can be applied. do skin test before applying or check if any allergy kinda.. consult ped take care

it is all about something like body overheating and mosquito bites

How did this happen ? did he burn himself or something ?

Welcome to Babychakra Mahitha. What kind of over heating are you talking about and what kind of infection as a result. can you share a pic too? Very tough to advise if we don't know what it means.