Dry mouth improves with a combination of staying hydrated, stimulating your salivary glands, and protecting your teeth from the damage that low saliva causes. The National Institute of Dental and Craniofacial Research recommends drinking 8 to 12 cups of water per day (64 to 96 ounces) as a starting point, but hydration alone usually isn’t enough. The strategies below work together to keep your mouth comfortable throughout the day and night.
Stimulate Your Saliva Production
Your salivary glands respond to chewing and tasting, so giving them something to work with is one of the fastest ways to get relief. Sugar-free gum is particularly effective. A two-year study of children chewing three pieces of sugar-free gum per day found a 41.7 percent reduction in cavities compared to those who didn’t chew gum, largely because the increased saliva flow helped neutralize acids and wash away food particles. Three pieces a day is easy to maintain and gives your glands regular stimulation.
Look for gum or hard candies sweetened with xylitol or sorbitol rather than sugar. Xylitol has the added benefit of inhibiting the bacteria that cause tooth decay. Tart or sour flavors tend to trigger more saliva than mild ones, so lemon or citrus varieties can be especially helpful.
Ginger also shows promise as a natural saliva stimulant. A study comparing ginger extract oral spray to a control group found significant reductions in common dry mouth symptoms, including the need to drink water to swallow dry foods, morning dryness, and burning sensations in the mouth. You can find ginger sprays designed for oral use, or simply sip ginger tea throughout the day.
Keep Your Mouth Moist Between Meals
Sipping water frequently is the simplest approach, but plain water evaporates quickly from oral tissues. To make moisture last longer, keep a small spray bottle of water mixed with a few drops of glycerin. Glycerin is a humectant, meaning it attracts and holds onto moisture, extending the time your mouth stays comfortable between sips. It’s flavorless, inexpensive, and nontoxic.
Over-the-counter saliva substitutes are another option and come in spray or drop formulas. These products coat your mouth with a film that mimics the slippery feel of natural saliva. For rinses, look for products containing xylitol, such as Biotene Dry Mouth Oral Rinse or ACT Dry Mouth Mouthwash. Avoid any mouthwash that contains alcohol, which dries tissues further.
Managing Dry Mouth at Night
Nighttime is often the worst stretch because saliva production naturally drops during sleep, and mouth breathing makes things worse. A humidifier in your bedroom helps significantly. Cool mist or warm mist both work, so use whichever you prefer. The added moisture in the air slows the evaporation from your oral tissues while you sleep.
Before bed, apply an oral moisturizing gel to the inside of your cheeks, gums, and tongue. These gels are thicker than sprays and stay in place longer, providing a protective coating that can last several hours. Keeping a water bottle on your nightstand for quick sips if you wake up is also worth the habit. If you tend to breathe through your mouth while sleeping, a chin strap or nasal strip can help you breathe through your nose instead, which dramatically reduces overnight dryness.
Foods and Drinks That Help or Hurt
Caffeine and alcohol both reduce saliva production and should be limited. This includes caffeinated teas, coffee, sodas, and alcohol-containing mouthwashes. Replace caffeinated drinks with caffeine-free herbal teas. Warm tea with honey can be especially soothing and helps coat the throat.
Certain foods are harder to eat with a dry mouth and can also irritate sensitive tissues. Tough meats, raw vegetables, bread, pretzels, rice, chips, and dry baked goods like muffins all absorb what little moisture you have. When eating these foods, pair them with yogurt, non-acidic juice, or jelly to help them go down more easily. Papaya juice may also help because it contains enzymes that thin saliva, making what you do produce more effective.
Protect Your Teeth From Decay
Saliva does far more than keep your mouth comfortable. It constantly bathes your teeth in minerals, neutralizes acids, and washes away bacteria. Without adequate saliva, your risk of cavities rises sharply. People with chronic dry mouth need a more aggressive dental hygiene routine than average.
Brush twice a day with a fluoride toothpaste (around 1,350 to 1,500 ppm fluoride concentration, which most standard toothpastes meet). Use a pea-sized amount, spit out the excess, but don’t rinse with water afterward. Leaving a thin film of fluoride on your teeth gives it more time to strengthen enamel. Brush right before bed so the fluoride sits on your teeth overnight.
Add a daily fluoride mouth rinse, but use it at a different time than brushing. If you brush morning and night, rinse after lunch, for example. Using rinse and toothpaste at the same time doesn’t increase protection, and spacing them out keeps fluoride levels steadier throughout the day. After meals, rinse your mouth with a mix of baking soda and salt in water to neutralize acids if you don’t have fluoride rinse handy. Cut back on sugary foods and avoid medications that contain added sugar when alternatives exist. Ask your dentist about professional fluoride varnish treatments every three to six months.
Check Your Medications
Medications are the most common cause of dry mouth. Several widely prescribed drug classes reduce saliva production as a side effect, including diuretics (water pills), beta blockers for blood pressure, tricyclic antidepressants, antihistamines, anticonvulsants, antipsychotics, and oral morphine. If your dry mouth started or worsened after beginning a new medication, that connection is worth exploring with your prescriber. In some cases, an alternative drug in the same class causes less dryness, or adjusting the timing of your dose can help.
Don’t stop any medication on your own because of dry mouth. But do bring it up, because prescribers sometimes don’t ask about this side effect, and they may have options you haven’t considered.
Prescription Options for Severe Cases
When home remedies and over-the-counter products aren’t enough, prescription medications can directly stimulate your salivary glands to produce more saliva. These drugs work by activating the same nerve receptors that naturally trigger saliva flow. They’re most commonly prescribed for people with Sjögren’s syndrome or those who’ve had radiation therapy to the head and neck, but they can help with other causes of severe dry mouth as well.
These medications are taken three times daily and can produce noticeable improvements, though they come with potential side effects like sweating and digestive changes. They aren’t appropriate for people with uncontrolled asthma or certain eye conditions, so your doctor will review your full health picture before prescribing them.
Putting It All Together
The most effective approach layers several strategies. During the day, sip water consistently, chew xylitol gum after meals, and avoid caffeine and alcohol. At night, run a humidifier and apply a moisturizing gel before sleep. Upgrade your dental hygiene routine with properly timed fluoride products. And if you take any of the medication classes known to cause dryness, have a conversation about alternatives. Most people find that combining three or four of these strategies brings significant relief, even when the underlying cause can’t be fully resolved.