Hello.
Thank you for asking at HCM.
From your history, I guess that your son has got frequent respiratory complaints, most probably due to
allergy.
Myteka contains
montelukast and it does not have major side effects even after using for a few months in children. Rarely, a child may have nausea,
vomiting, headache, etc but they are not seen in most of the patients.
I would like to inform you that infections are different from allergies. So if your son is having recurrent allergies, please do not worry. There are good controlled medications for allergic respiratory symptoms.
However, if he is having recurrent infections, I would suggest you to
consult a pediatrician who may suggest some tests for
immunodeficiency. It's an entirely different group of diseases, fortunately far less common than allergic disorders.
Hope this will help you.
Wish your son fast recovery & best health.
Regards.