First, do you have any idea why your mouth feel this way? Are you on any medication that might cause it? Are you nervous about something? If it's a medication side effect from a new medication, it should go away once you're on it for a while.

I have had this problem and what helps me is to drink a lot of fluids, especially water, throughout the day. Try this and see if it helps. Also, hard candy or gum can help your saliva glands work better.

Good luck!