Possibly the most practically useful college course I ever took was a 1-credit
yoga class, to fill a Physical Education requirement. This is where I learned about "warm" and "cold" breath, and forcing breath through one nostril. If you experiment with
breathing from the belly, breathing in through one nostril and out the other, you can actually coax the
congestion to switch sides. I've personally found that switching congested sides can make it easier to
sleep. The few breaths when the congestion seems to be
balanced, is a good time to breathe some steam laced with
wasabi or
pepper sauce aromatics.