As we age, some people notice a decrease in saliva production. Unfortunately, aging and age-related issues can happen to anyone. Treatment is usually limited to topical rinses and gels to make the patient more comfortable. I have no idea how old you are.
Systemic diseases can cause the same problem. Some are related to a decrease in tear production as well. They are often auto-immune problems, where, for some reason, the body begins to attack itself, affecting the cells that produce saliva and tears. That requires a medical diagnosis and treatment, but often can only be treated with the rinses and gels.
Finally, a systemic disease that often causes dry mouth is diabetes. If you are diabetic, or have recently transitioned to that condition, dry mouth is a warning sign of elevated glucose levels.
So, if you're on medications for anything, check with your doctor or pharmacist to see if dry mouth is related to any meds. If not, check with your physician and dentist to see if any of the other possible causes are affecting you. It could be nothing but a bothersome condition, but it could be a sign of a more serious, underlying problem.
avoiding drinks with caffeine, such as coffee, tea and some sodas.
Chew sugarless gum or suck on sugarless hard candy to stimulate saliva flow — citrus, cinnamon or mint-flavored candies are good choices. Ultimately study any of the medications that you may be taking for dry mouth side effects and discuss them with your physician at your next visit.