If you're willing to do anything to clear up your mucus problem, try this remedy. Mix 1 cup warm water, 1 teaspoon salt, and a pinch of baking soda. Get a nasal syringe and squirt the mixture into your nostril, closing off the back of your palate and your throat. Tilt your head back, forward, and to each side for eight to ten seconds in each position to get the solution through all four of your sinus cavities. After you swish everything around, blow your nose. Try squirting in three or four bulbs full of the solution on each side of your nose. If you don't have a bulb syringe, you can snort the mixture out of your cupped hand. Try this process up to six times a day when you're dealing with postnasal drip. If you want to avoid future problems, do it twice a day.