Mix one-half teaspoon uniondized salt in an 8-ounce glass of water (described above).
uniodized salt is used because iodized salt may be irritating when used over a long period of time. Add a pinch of baking soda. A pinch is a small amount you can pick up between two fingers. If you are congested, use the entire 8 ounces of saltwater during the nasal wash; http://www.Nationaljewish.Org/healthinf.