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