OMG....what to do!

Not only is my dad dying, but he is killing my mom as well. I went down this morning to stay with him so she could go to the hairdresser. When I got there, she was lying down. She said Dad fell again last night and busted his head open. She doesn't even know why he was out of his room because he has a potty chair right beside his bed, but he fell in the hall headed back to his room and the walker was on top of him. Mom and my brother got him patched up, but my brother said it really needed stitches. Mom spent the rest of the night sitting up in a recliner in his room. She is soooooo not able to do that. When I got there, she canceled her appointment and went to lie down. I told her I would stay there and I wanted her to go sleep. She didn't stay down long, but I got some lunch for both of them, took him for his walk and made her go back to her bed to rest. Dad doesn't remember any of what happened last night. Tonight she took his walker out of his room. He can't go anywhere without it. She ALMOST consented to my getting a sitter at night when I asked her this morning...but not quite. I talked to my brother about it tonight and he wasn't sure how Dad would handle that. I told him that Dad didn't have a "say" in this decision. We have to save Mom! He has already complained about the lady we got to help with the housework. Mom told him to "get over it"...she needed help! Good for her!