rhinitis
"I have vasomotor rhinitis and this is the best drug for me.  When I'm off of it for a few days I can feel my nasal passages swelling and I get an awful headache.  Before being on this I took decongestant/antihistimines and I still had post nasal drip and stuffiness and a lot of headaches.  With this drug I feel like a normal person most of the time.  The only downside is that I get more thirsty than normal but I just constantly carry water with me."