I agree--Thank goodness for the Biotene products, especially the gum. I have found it to be a great substitute for my water bottle when I can't carry it with me (Some work situations). It helps moisturize, stimulate saliva production (Probably from the chewing motion, what little I can produce on my own), and helps keep things limber (the trismus ordeal).
As far as the mouthwash, it also burnt me in the beginning but has improved a lot over the past six months. I still get some burn in the back of my throat immediately following usage, but I think it does help me at night while sleeping. I truly believe in their products and use them all! (No, this isn't an advertisement but if you haven't tried them you should)
My pharmicist keeps about a dozen packs of gum in stock for me at all times and I usually have a piece of gum in my mouth during the day!!
Best of luck to those who try it!!
Steve