Chew sugar-free gum or suck on sugar-free hard candies to encourage the flow of saliva. For some people, xylitol, which is often present in sugar-free gum or sugar-free candies, may cause diarrhea or cramps if consumed in large amounts. Restrict your caffeine intake because caffeine can make your mouth dry. Do not utilize mouthwashes that contain alcohol because they can also dry mouth. Stop all tobacco use if you smoke or chew tobacco. Sip water on a regular basis (12 Glass per day minimum). Breathe through your nose, not your mouth. Add moisture to the air at night using a room humidifier.