Your body may produce more saliva when you have a cavity or infection in an attempt to wash away germs. The excess saliva may come out of your mouth at night as drool.

In very rare cases drooling can have some more serious health complications, adds Dr Patel: “Excess saliva can be aspirated into your lungs, putting you at risk of pneumonia.

Some medications increase your saliva production. This is known as drug-induced sialorrhea, or hypersalivation, and it can make you more likely to drool at night. These medications are: ...

I SUFFER from excess saliva in my mouth, especially at night. I also have a prostate problem. My doctor said that very little could be done. Any ideas?