Home remedies for dry mouth include sugar water, parsley, liquids, water and cayenne pepper, according to HowStuffWorks. Water should be tried before other remedies since dry mouth usually stems from dehydration.
HowStuffWorks suggests a sugary water solution be used to counter a dry mouth. The drink requires 1 cup water, 1 teaspoon salt, 1/2 teaspoon baking soda and 1 tablespoon sugar. A hint of lime, orange or lemon can be included for flavor. Drinking the sugar solution is also a suitable drink after exercise or vomiting. Liquids of any kind are helpful as well, including gravy, sauces, soups, stews or yogurt. A glass of water should go with each meal. Alcohol, sodas and coffee should be avoided.
HowStuffWorks notes that parsley eliminates bad breath from dry mouths, plus it contains calcium, iron, and vitamins A and C. Aniseed is another source that freshens a person's breath, and it can be mixed with rosemary to create a homemade mouthwash. This requires 2 1/2 cups boiling water, 1 teaspoon aniseed, 1 teaspoon dry rosemary and 1 teaspoon dry mint. The mouthwash should be refrigerated before gargling.
HowStuffWorks claims that cayenne pepper boosts saliva production. Heavily using red pepper in meals is another useful tactic against dry mouth, and eating spicy foods in the form of chili and salsa further increases salivation.