Hi, I'm so sorry to hear about your mother. I have been doing lots of research because I have three family members suffering from cancer. If you search pubmed.org you will find that artesunate has been proven effective in destroying liver cancer cells. Artesunate has been used for years as an anti-malaria treatment. It is a derivative of the plant artemisia annua and has been found to be very effective against many types of cancer cells.
OIther useful treatments to research on pubmed are: agrimonia, which increases the white blood cells which fight cancer, Cats Claw has a similar action, Berberine kills cancer cells, Quercetin is a powerful anti-oxidant.
I hope this helps.