I drive her around and bring her back and say "you are home". Helps a few hrs. I show her an envelope addressed to her and have her read off the streets until we return home. Just when I think she is o.k. a few hours later she starts again. She has lived in that home for 18 years and everything in it was bought by her and her husband (deceased). Why does she not recognize she home? Why when I bring her back to the exact same house she thinks she IS home?