My mother (age 55) who is diagnosed with frontotemporal dementia has been showing signs of serious decline since last week. She has started talking to herself and people who are not even there - continuously. This is somewhat manageable during the day but she has started talking at night as well while sitting on the bed refusing to lay down. She also refused to shower which she could do on her own until last week. This is a sudden change (for the worse) and we are trying to cope with it. Any advice or experience on how we can calm her down is appreciated.