allergic rhinitis
"The prescription was a terrible waste of money.  First time EVER for allergies this spring (I'm 55), and as a rule I don't take any medication if I can avoid it.  Eight weeks of near constant congestion in my sinuses from the allergies drove me to my PCP who prescribed Azelastine. This had absolutely no effect and it made the congestion much worse within minutes after the first use of the spray. I continued to use as directed for another day thinking it had to get better, but the congestion got so bad that I couldn't sleep at night, even with a topical nasal decongestant (I really HATE topical decongestants and avoid using them). I stopped using the spray after a day and half; I'm still searching for relief from the constant congestion."