Question for dentists:what causes dry mouth all the way round the inner lips,like when you eat acidic citric fruit.had it for 2 months.gums a little sensitive.teeth ok. have tried chlorhexidine 0.04% for 14 days but not much difference.ideas?

I’m not dentist,but there are many causes for dry mouth:MEDICATIONS, dehydration,Parkinson’s,diabetes,respiratory infection, Sjogren’s Disease(autoimmune disease of salivary glands.)Your PCP can help.Important to replenish the moisture to avoid cavities&bad breath.Use lozenges&artificial saliva.Crest web explains: https://crest.com/en-us/oral-health/conditions/dry-mouth/dry-mouth-causes-remedies-a

There are literally hundreds of medical conditions and medications (prescription, OTC, & recreational) that can cause a dry mouth, along with changes in diet, exercise, and a change in your HVAC system. Go see your Dentist for a comprehensive oral evaluation.