Thanks for your query. i have gone through your query. consult your oral physician and find out the cause of decreased salivary secretion. this can be because of many reasons like any stones in the duct opening, any developmental anamoly, radiation exposure, sjogren syndrome, certain drugs like antihistamines. once we find out the cause we can treat. you can drink lot of water, keep sipping the water. you can use artificial salivary substitute like wet mouth gel. i hope my answer will help you. take care.

Hi! Welcome to Healthcaremagic.
I read your query. Decreased salivary production can be due to various reasons like certain medications, diseases like diabetes, sjogrens disease, dehydration, chemo or radiotherapy, blocked salivary gland duct, stress, etc.
This affects chewing, taste, increase cavities, gum problems.
Avoid stress, drink lots of fluids, chew sugarless gums, suck on sugar less candies. In case of medicine or disease leading to low saliva, contact your physician.
If this persists, visit a dentist. Your salivary glands and ducts examination would be done. There are few artificial salivary rinse and spray for use on prescriprion.
Hope the answer helps you. Thank you!