Thanks for asking the query,
There are many factors that contribute to excessive salivation
like GERD, pregnancy, excessive starch intake, pancreatitis
, liver disease, oral infections, mouth ulcers, prolonged use of certain medications.
I would suggest to get a checkup done by a Physician and Dentist
Go for symptomatic treatment of complete mouth scaling and polishing.
Drugs like anticholinergic
can be helpful.
Use of antiseptic mouth rinses can also have drying effects.
Hope this helps out.