Let me just start by saying that today my father found out he was in remission from his Leukemia, which is obviously some of the best news I have heard in my entire life. It looked pretty bad only 2 years ago though, but things can really turn around. As others have said, research and background knowledge is your best weapon. My mom and dad learned everything they could about Leukemia and it for sure saved my father's life. Don't rely on the doctors to take care of everything, because in my dad's case they simply didn't. Its amazing how many different perspectives and opinions you can get even in the same hospital and how lazy and uncaring some nurses/schedulers can be. Get as much help as you can, know what the options are, and have a plan. The best help you can give besides emotional support is to keep her as physically healthy as possible. Chemo is obviously not a fun experience, but it is the best way to fight the cancer. The problem is, at least with my dad, that they reduce the chemo depending on how sick you are. My mom and I, her especially, had to drive it into my father how healthy he had to eat, that he constantly had to wash his hands and carry around hand sanitizer, and that he couldn't drink or eat candy anymore. Through the winter everything would make him sick, so he had to stay away from my brother's school and pass through the waiting room at the doctors as quick as possible. In the end, he fought through it and I hope your mother can too. Now is not the time to feel helpless though...its the time to be proactive. Best wishes.