As you have mentioned your son is suffering from Intermittent asthma. Management of this condition is inhalational bronchodilator
or seroflow) as and when required. Montelukast
is actually used in treatment of persistent asthma
( attack more than one time a wk), sometimes physicians prescribe it in intermittent attack also because it reduces bronchial reactivity. Side effects of montelukast are very few like restlessness
, irritability etc.
I hope this answers your query effectively.
In case you have additional questions or doubts, you can forward them to me, and I shall be glad to help you out.
Please accept my answer in case you do not have further queries.
Wishing you good health.