I'm really worried about this allergic problem I've been dealing with for the last two years. I keep getting short of breath, there's this whistling sound when I breathe, plus I've got a runny nose, a cough, and sometimes even a fever. Montek LC tablets do help, but as soon as I stop taking them, all these symptoms come back within a day or two. What should I do? Can you suggest anything that'll give me longer-lasting relief?