My God people. What are you thinking! Talk to someone who's had a sinus block. They'll tell you they thought they were ok to fly, also . . . and in the descent they look like the guy on "Alien" that has the baby monster eat its way out of his chest. Got the imagery yet? If you're still coherent after landing you may need to get a sinal obliteration, like a friend of mine did. Just that word "obliteration" got my attention - sort of like a liposuction procedure for your nose. I don't know about you, but it'd take 3 good size rough blokes and a horse syringe full of sleepy juice to get me on the table for that.
Don't fly with a URI is my motto.