is caused due to broncho-constriction (obstruction of smaller airway passages) which is indicative of Hyper-responsiveness of air passages to an allergen.
inhaler will provide symptomatic relief by causing broncho-dilation (dilating the smaller airway passages, relieving the obstruction & increasing airflow to lungs)
Monticope is Montelukast
, which is used as a maintenance therapy to relieve symptoms of seasonal allergies & asthma by reducing broncho-constriction.
So..the medicines given by the Doctor is correct...please continue them as advised.
& antihistaminic syrup can be used to take care of fever
And make sure that your son is well protected from cold, dust & other allergens.
Wishing him a good health.
Thanks & take care.