You should talk to your dr about modifying your controller meds and posibly changing you to something like Symbicort or Advair
as the other poster suggested.
an anticholenergic. All those do is
dry up the mucous and drainage - post nasal drip. I use it and love it. Singulair is a leukotriine modifier. That is one of the many chemicals involved in allergic reactions. As far as which is better, that would be hard to say. They have totally different purposes.