allergic rhinitis
"I have had a cough from allergies for almost a year now.  I was prescribed an oral medication and flonase.  They had no effect on my itchy throat.  I was prescribed Azelastine and immediately after using it my throat stopped itching.  This cough has been tormenting for a long time and now it is gone.  It's unbelievably wonderful!  It did have a really bad taste that gaged me but I don't care!  Next time I will try to lean forward more when I use it."