- Minimize your intake of spicy or salty foods as these may cause pain in a dry mouth.
- Quit smoking.
- Use a moisturizer on your lips to minimize irritation.
- Use a soft-bristled toothbrush on your teeth and gums.
- Rinse your mouth before and after meals with plain water or a mild mouth rinse (made with 8 ounces of water, ½ teaspoon salt, and ½ teaspoon baking soda).
- Brush with a fluoride-containing toothpaste.
- Use a humidifier to increase the humidity in your home, especially at night.
Source : WebMD Medical Reference