I think E Neira might have mixed up the names or perhaps I am using them wrong. It's easy to get the names mixed up though, happened with my doctor and I and that is how I got introduced nasonex.
I use Nasacort daily and it typically works pretty well. You have to use it daily to be effective. Now you can buy it without a prescription for ~$17/120 sprays, cheaper with a 3-pack or sale.
I use Nasonex rarely, it typically provides immediate relief (almost like using afrin). I only use it when Nasacort or I fail (occasionally I forget). It requires a prescription and yesterday retailed for $253.99/120 sprays.