Hi Jojo,
I find that the biotene products are pretty good for dry mouth. I work in retail and have to talk to people, i squirt their saliva replacement liquid in my mouth every once in a while and it helps alot. Before going to bed, i rinse my mouth with the Biotene mouthwash and it provides a few hours of relief. Hope it gets better for you soon, for me it hasnt gotten better but i know how to manage the problem better over time and now it is not so bad anymore.
Minh