Thanks for your query.
I can appreciate your concern.
Your boy probably needs only fever
medicine (like panadol/crocin
) & saline nose drops for blocked nose if any.
is an antibiotic which is unhelpful in viral infections.
Ventorlin can be tried if he has significant wheeze ( a clinical finding confirmed by examining the chest with a stethoscope) .Even If deemed necessary it is safer to use ventorlin in inhaler or nebulisation form as the syrup is more likely to be associated with certain side effects like fast heart beats, irritability & tremors.
Hope you found the information useful.