Allergic To Dust, Weather Changes, Starts With Irritation On The Upper Side Of Mouth, Throat, Chest Causing Breathing Trouble. Improvement With Montair LC. Is It Safe For Long Term?

hello sir my problem is that i am allergic to lot of things like weather change saw dust, taking something cold , the reaction is i start getting uncomfortable there is a littile irritation upper side in my mouth then this passes to my throat and then my chest, shortness in breathing , breath heavily after climbing stars, i had some relief after taking allegra , then i consulted a md he prescirbed montair lc this give me complete relief for one day i feel very comfortable recently i found that after eating rice i felt this is something which is creating this problem. i also suffer from digestion problem is it safe to take montair lc for a long period what will be its long term side effects