question: Hai doctor,for my 1year 3 month old son .always he is getting allergic cough and running nose and gradually going to chest infection and some time fever and chills . I am mother and I have history of allergy to dust .for my son dr.priscribed moticope suspension ,how long time he must take this medicine ?and what are the precaution to avoid this allergic .what kinds of food item to avoid.? Kindly answer for me