@tenleyv There area number of us in the blood cancer support group who have also had bone morrow transplants for leukemia. I’d encourage your friend and her mom to join our forum just as you have to connect with members who have gone through this same experience.
I’m posting a link below to one of several support group conversations for members who have had bone marrow transplants. I’m coming up on my 4th re-Birthday…the 4 celebration of life after transplant. It’s been an amazing journey so far and well worth the effort. It’s given me a second chance at life and hope for a lengthy future.

Will soon have a Bone Marrow Transplant: What can I expect?

https://connect.mayoclinic.org/discussion/bmt/
Your friend and her mom are both experiencing different aspects of her mom’s disease…how are they coping?