evar1989, thank you for the xylitol recommendation. I had previously tried two other ones that did nothing. I constantly had a lot of the thick nasty phlegm for over 3 months, especially while trying to sleep. I took your advice about the xylitol, but ordered nasal spray with xylitol from amazon. Have been using for 4 days, 2 x day, day and night, and now only have about 1/3 of the phlegm. It' called Xlear. I feel so much better.