Hi.. Thanks for the query.. Well, dry mouth is the only reason for the other oral symptoms that she is facing and it is probably due to blood pressure medication only as blood pressure medication are commonly seen to cause dry mouth.. For a better examination and diagnosis, you should consult an Oral Physician and get evaluated.. The first effort is to relieve dry mouth and for this she can start using oral lubricants like Oralgel and artificial saliva drops.. Chew sugar free chewing gum.. Such lemon drops.. Drink plenty of water and maintain a meticulous oral hygiene.. Hope this helps.. Regards..