Dehydration is an obvious cause of dry mouth, but dehydration doesn't always arise from the obvious reason (that is, not drinking eight glasses of H2O a day). If you drink a lot of coffee and find yourself with a dry mouth, you may be Use a Rinse: Since less saliva is a precursor to dental cavities, it's a good idea to. Mar 7, Dry mouth can be an annoying and even painful condition but there dietary and lifestyle changes that can get rid of dry mouth for good. There is a good reason why you feel so thirsty and weak after a long night of drinking. Home Remedy for Dry Mouth Sep 14, In addition to being dehydrating, the acid can also be painful for dry mouth sufferers. Water, milk, or decaffeinated sugar-free drinks are best. Apr 25, The best dry mouth remedies are those that trick your body into Drink sufficient amount of water throughout the day or suck pieces of ice. Apr 5, Click here to learn more, plus 9 natural ways to relieve dry mouth. both bacteria and fungi in the mouth, making it essential for good oral health. (3) Alcohol use, including binge drinking and the use of alcohol-based.