I have dry mouth, i'm 56 female, it's really bad at night mostly . during the day i drink constantly, i rarely sleep with my mouth open, still happens?

Sjogren's: A dry mouth like you describe can happen for several reasons. The most common is due to medications - diuretics, antihistamines and blood pressure medications are the most common causes. A second potential explanation is a disease called sjogren's, where the immune system wipes out the salivary glands. It would be best to discuss this issue with your primary care physician.

Dry mouth: The number one reason for dry mouth is the medications we see our patients are on, assuming you are taking medications . If you are not on any medications have your dentist do oral exam and check your salivary gland for possible blockage of the duct due to stones. Or you have to check with your md to see if you have auto immune disease like lupus or sojgren disease , biotine products can help , .