I have an extremely dry mouth and throat at night.  I cant produce spit and so I have to get up and gargle w/water or a solution made for dry mouth.  I believe that this started before my knee surgery about a year ago and I was put on Hydrochlorothiazide 25mg.  Is there any medical issues that would cause my mouth to be this dry.  I do not have a problem except when I sleep.
Hi. Thanks for the query. Chat Doctor. . Some individuals have a habit of breathing through mouth while sleeping or sleeping with open mouth causing the mucosa of mouth and throat to