Maybe you’re dehydrated or perhaps your dry mouth is a sign of a bigger problem.

We got this question from a viewer:

Dear Dr. Manny,
I wake up during the night with a very dry mouth. Is there any way of knowing what could cause this extremely annoying problem?
Thanks,
Diana

There are many causes for dry mouth, including dehydration, certain medications and some underlying medical conditions. If it’s persistent, it’s important to go see a doctor to find out the true case.

Fortunately, dry mouth is treatable. Here are some ways to manage it:
- Drink water frequently.
- Suck on sugar-free candies.
- Avoid salty foods and alcohol.
- Stop smoking.
- Use a humidifier at night.

Do you have a health question for Dr. Manny? Email us at DrManny@foxnews.com.

Dr. Manny Alvarez serves as Fox News Channel's senior managing health editor. He also serves as chairman of the department of obstetrics/gynecology and reproductive science at Hackensack University Medical Center in New Jersey. Click here for more information on Dr. Manny's work with Hackensack University Medical Center. Visit AskDrManny.com for more.