She tries to get out of the outside doors when she can barely walk with a walker. I have to lock all doors to prevent her from leaving. She says she has to go she has things she has got to do even if she has to walk two hours to get there. She gets verbally abusive when I prevent her from leaving.For three to four hours she goes from one door to the next trying to get out of the house or begging me or my husband to take her to get somewhere. She can't tell us where she wants to go or how to get there but she just has to go like now. She has dementia. She walks constantly during this time and I have to stay close for fear of her falling. There is a step down to the back door where she has fallen going up and down. When she gets to these steps I have to be there to help her up or down. This starts around three pm every day and goes on until she is so tired she can't walk anymore. Is this sun downers? She will continue to beg me to let her go or take her where she has to be. She tells me she has to pick the kids up at school although her youngest child is fifty years old. She will say her mother is expecting her when her mother has been dead for thirty years. My dear mother is ninety-two years old and so confused she will not believe me when I tell her she has adult children or that her mother has been deceased thirty years. Every day for hours it is a battle to prevent her from wandering off no matter what I tell her. I can't take my eyes off of her for one minute. Her doctor will not medicate her. I refuse to put her in a nursing home. I want to be her caregiver. I want her final years to be peaceful for her. I take her to visit her other children although it is difficult to get her in and out of a vehicle. What can I do to get her through these few hours of horror every day?