Biotene makes a dry mouth gum, which I use during the day. It may be a little hard to find locally, but works really well. Use the OCF link on the main forum page to enter Amazon EVERY TIME you go there for anything, and OCF gets 4% of your purchase as a
donation from Amazon at no cost to you but a mouse click. Every little bit helps p[ay the costs of operating the foundation.
http://www.amazon.com/?ie=UTF8&%2AVersion%2A=1&tag=oralcancerfou-20&link_code=hom&%2Aentries%2A=0
search for Biotene gum