Suggest Treatment For Dementia, Anxiety And Memory Loss

Hi. My mother-in-law, Diane, is 72. She has struggled with memory & anxiety for over 10 years. The last year has become much worse. She is starting to hallucinate, gets lost, gets disoriented, needs help figuring out how to put her clothes on, needs help with her stove & other appliances, etc. My father-in-law, Terry, has been with her 24-7 to make sure she s okay & to help with everything she needs. He has take n her to get a CT scan twice among other things. Their geriatrics doctor says there is nothing wrong physically with her. He has been taking her to a psychiatrist, who has been treating her for anxiety. Her psychiatrist has noticed a substantial change in memory loss from when the psychiatrist first started seeing Diane a year ago. The hallucinations just started last week (we think). All hallucinations revolve around bugs - seeing them on people, on food, coming through the drywall in her home, etc. Family history = Diane s father (Ed) had Sun Downers Dementia. Thankfully Diane is happy all of the time, but as a family we are concerned & are at least praying for a diagnosis. Can you help? Thanks so much, Tanya Miller