Dry mouth is termed xerostomia. The causes can be;
1) fever / raised body temperature,
3) anticholinergic drugs,
4) Sjögren syndrome; when salivary gland are affected by autoimmune disease,
5) antidepressants and other drugs
6) parotid gland infection (parotitis / mumps)
So your primary care physician should investigate these causes. Diabetes is first to be looked for by getting a glucose tolerance test and glycosylated hemoglobin (HbA1C).
Following measures can be helpful, meanwhile;
1) Eating easily ingested foods; Moisture in mashed potatoes makes them easier to eat than potato chips, which are drier. Corn from the cob contains more moisture than dry popcorn. Crackers and biscuits, may be avoided as they are too dry to eat
2) Adopting strict oral hygiene regimens, including flossing, careful and thorough brushing, and the use of a periodontal cleansing aid. Frequent dental appointments for topical fluoride applications and pit and fissure sealants.
3) To stimulate flow using sugarless chewing gum or candy.
4) Oral pilocarpine is also effective in increasing salivary flow.
5) Overall body hydration through ingestion of adequate water every day is very helpful measure (which you are already doing).
6) Saliva substitutes (can get without prescription, as they are water-based, they help).
7) Avoid habits, such as smoking, mouth-breathing and intake of caffeine-containing beverages.
8) Avoid medications like chlorpheniramine, doxylamine, dexbrompheniramine, triprolidine, brompheniramine, diphenhydramine, pyrilamine and phenindamine.
9) Drink ginger, chamomile or green tea to stimulate saliva.
10) Celery helps stimulation of saliva glands and adds extra moisture to mouth.
Please feel free for your follow up questions.
I would be happy to assist you further, if you need any more information.
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