Stuffy nose after instense orgasmic sessions...

Nah, back when I was younger and nothing would stop me, I had some sessions while I had a cold, with my head elevated, and a Super-O never cleaned my sinuses. The Internet is wacky. 

Well orgasms are good for your hair also, tell all the ladies! 😉 

I remember a particularly steamy passage from Heretics of Dune by Frank Herbert that mentioned the nasal thing:
"Duncan marked the swelling of her breasts and saw the congestion in her nose. He saw the way her nipples stood out stiffly, the areolae darkening around them. She moaned and spread her legs wide."
(it's the Duncan Idaho/Murbella sex scene where he learns he is just as adept as the Honored Matres at controlling the opposite sex)

I suppose reading such things as a young impressionable man it seemed natural that this was a part of it, plus I wouldn't really call myself a sexpert.  Of course I am congested all the time anyway so I'm no help.  But masturbating or having an Anerosession hasn't cleaned out my sinuses nearly as much as a good dose of wasabi!

I've found that my ears pop after a session as if I have changed altitude. Strange...