I was just prescribed Singulair to control my asthma/allergy symptoms, and had high hopes, as I've been on Symbicort, Duoneb, Albuterol prn and 2 different kinds of nasal sprays, and am not seeing a big change yet. It's only been 5 days and I know I need to give it more time, but am exhausted from work of breathing and being short of breath all the time, still using my inhaler 3-4 times in the middle of the night :(