I know you said no meds, but just in case I am a big fan of Claritin D...in is OTC now, but they keep it behind the desk at the
[hr]
and not on the shelves. Make sure you get Claritin D and not just Claritin...one tab dries you up for 24 hours, no drowsiness or other side affects, for me at least. Make sure to check the box in case you plan on operating fork lifts or cranes...however on second thought I remember one of their commercial with a construction worker being "Claritin Clear" while sitting on a back hoe. Double check though...
Another thing we use for our baby and toddler is a humidifier in the room at night while sleeping. While you are horizontal, all the junk starts collecting in your lungs, the humidifier will help keep it clear, soft, and breathable.