Salt Water Nasal Rinse May Prevent Coldshttp://articles.mercola.com/sites/articles/archive/2008/01/02/salt-water-nasal-rinse.aspxDaily salt water 'irrigation' of the nasal passages may help protect against the common cold. Nasal irrigation treatment was "effective" in reducing overall incidence of colds among practitioners, according to Dr. Richard Ravizza of PennsylvaniaenCommunityServer 2008.5 SP1 (Build: 31106.3070)