When I went home to be with my Mom during chemo, I drove Gavin with me. He stayed with us for almost 3 months, hanging out at Grandma's house and in her yard. I have pictures of Mom sleeping in her recliner and Gavin sleeping on the floor next to her. I took him on stroller walks daily, helped both of our stress levels. Sadly, he passed almost as soon as returned to CA but I know Mom loved having him with her for those months. (Mom did know I was looking into getting a puppy before she passed, she would have loved Pico too)
Dogs are the best medicine! I hope your Mom can come home soon.