Holding your breath for the flight is another nifty trick! If you have sinus/nasal problems, using Afrin or neo-synephrine just before flying to prevent problems clearing your snuises due to reduced pressure in the cabin (something the new Dreamliner should avoid) is a good idea unless you have poorly controlled BP or ryhthm problems. I recommend Zicam/Cold-eze/Airborne all the time at the first sign of a cold-not harmful and may be helpful.
