Thanks for sharing the good news - it is always great to hear about people who are having success against cancer and it appears that at least some of the things she is doing is indeed helping battle the damnable cancer.
The key to ultimate success is to completely eliminate all of the cancer and then make sure it never returns.
I am a big fan of cannabis oil, but no fan of chemo. If I may, I suggest strongly considering adding what I believe is the ultimate anti-cancer item to her protocol: oleander extract. It is a supreme cancer fighter and also the most powerful immune booster and modulator known to man. AND, when taken with chemo it usually not only potentiates the chemo (makes it more effective), it also either eliminates or lessens virtually all known side effects associated with chemo.
You can learn more about it by taking a look at the series of articles I have written about it:
My elderly uncle, who is past 90 now, had lung cancer which spread to his liver several years ago - kind of similar and yet opposite your mum's experience. He beat his cancer by using oleander and following a very healthy diet and doing several things I suggested.
I hope this helps and wish her the very best. Please let us know how she progresses.