How to prevent dry mouth?
Sip water or sugarless drinks often
Avoid drinks with caffeine, such as coffee, tea, and some sodas. Caffeine can dry out the mouth.
Breathe through the nose, not mouth.
Tobacco and alcohol are to be avoided. They dry out the mouth.
Avoid spicy and salty foods and foods high in sugar.
Use a humidifier at night.
Brush your teeth thrice a day. A healthy tooth and gum line will promote proper salivation, which helps keeping your mouth moist and fresh.
Visit the dentist for a check-up at least twice a year. The dentist might give a special fluoride solution that you can rinse with to help keep the teeth healthy.
Chew sugarless gum or suck on sugarless hard candy to stimulate saliva flow.
Consult a physician if no other options seem to take care of your dry mouth problem. There are various medications that can be prescribed.