Hi my son is 10yrs old, was told he has a milk allergy. He is now on a milk free diet for the past 2months yet still he continues to wheeze, I started a preventer inhaler Flaxotide 2wks ago and it helped with the wheezing however he is still congested at night and early mornings! He sneezes constantly, itchy eyes, throat and cough. He is also using Bisolvon and Predcort DS is there something else I can use to help his situation?