Practical Health Practices, It's Now or Never. This show is "perfect timing" for the coming cold and flu season. Fact is: Oral and Nasal hygiene is a big deal, when minimizing the effects of the fall and winter months ahead. Dr. K welcomes Nathan Jones, CEO of Xlear, Inc. View his recently published article: "The Sweet Truth About Xylitol". To learn more about Xlear Nasal Spray and Spry Dental Defense Products visit Xlear.com.