Relieving dry mouth. There are many things you can do to ease the symptoms of dry mouth, even without an official diagnosis. Ways to relieve dry mouth include: Use sugar-free candies or gum to stimulate saliva flow, minimize the amount of caffeine you drink, such as in coffee and use alcohol-free mouthwash, especially those designed for dry mouth. People can also stop smoking, take consistent sips of water throughout the day and look for over the counter saliva options containing xylitol. Picking up a humidifier also helps.