@fify-- Xylitol is used in some ayurvedic remedies, as well as vitamins and supplements. It's also used in nasal spray for allergies.
My brother has chronic sinus allergies and he recently started using xylitol nasal spray. He says it works great. Since xylitol helps prevent bacteria, it can fight allergies and infections when combined with a saline solution as a nasal and throat spray. Xylitol sprays are becoming very popular. First, doctors that are proponents of natural treatments were encouraging the use of xylitol spray, but now, many allergists recommend it.