It will not harm you if you swallow a little. It is much easier to do in a seated or standing position. If you have been told to use a nasal steroid such as Vancenase, Beconase or Nasacort, you should always use the hypertonic saline solution first and then use your nasal steroid product. The nasal steroid is much more effective when sprayed onto clean nasal membranes and the steroid medicine will reach deeper into the nose. Most people experience a slight burning sensation the first few times they use the hypertonic saline solution, but this usually goes away in a few days.
Standard disclaimers apply.
Wes' Houston ENT, Dr. Kosoy mentioned a new product during Wes' March 2001 visit called SaltAire Nasal Sinus Wash .