The trick is figuring out what works for you, and sometimes Doctors don’t help much with that. They rotate through the standard prescriptions, then throw up their hands.

I have seasonal allergies (but only spring, summer, fall, and winter). I mostly live with it, and as long as it doesn’t turn in to sinusitis, I’m good. So I rinse my sinuses every morning (more often if I’m working outside in pollen), and roll over and sleep on my left side some every night so my right sinus drains. But that probably only works for me.