Thank you for your query.
Your child seems to have recurrent infections recently.
The type of infections generally seems to be viral in nature.
I could have guided you better if I knew the results of the tests in detail.
An high ESR
generally denotes a recent infection.
I think you should give him paracetamol
and lots of fluids.I hope his blood tests are fine.
If you have any further queries you are free to consult me.Hope this answers your query.Wishing your child a speedy recovery.Have a nice day.