Thank you for your query,
It seems your child having recurrent upper respiratory tract
infections because of frquent exposure to the viral or bacterial infections.
At present your child might be having follicular tonsillitis
with phryngitis with your description.
Consult your Peiditrician for the examination of throat and tonsills and for the appropriate treatment.
The repeated infections of upper respiratory tract are common till the age of 6 years.
Hope I have answered your query.