Neti Pot Sinus Relief

R.S. described her experience thus (paraphrase):

I was having a lot of trouble with sinus infections, so a friend from the yoga community recommended a neti pot. So I created an isotonic saline solution using kosher salt (so there'd be no iodine in it), tilted my head sideways, and used the neti pot to put the saline solution up one nostril, wash out the sinuses, and flush all the snot out the other nostril. I'm breathing freely now! It's wonderful!

Actually, I was appalled, but apparently it's a reasonable thing to do, and best yet, it seems to work. Who knew?