It might be time to get help if I can't get mom up and walking again. Will PT work? Any suggestions?

Not sure what to do. My mother has dementia, incontinent and does not verbally communicate. She has recently stopped walking due to sores on her heels. Her doctor is treating but she won't walk as long as it hurts. That makes it very hard on me as I have to manually transfer her from bed to wheelchair to chair. If she does't start walking again I will have to get help. Has anyone had success with getting a dementia patient who stopped walking to walk again with PT. She stopped walking a while ago when she twisted her ankle and with PT she started walking again but now it seems she is just not willing to even try for me. If I need to get help, does anyone have any good ideas where to find someone who can change her, feed her and sit with her for a few hours a day. I would love to get someone who can come in the morning before I go to work and help me get her up and in her chair, then stay a few hours and feed her lunch. Has anyone found it's better to get a personal sitter or someone from a home health agency?