Please help

My mom has invasive cervical cancer that could be spread to the liver. She is going through max dose radiation and small dose chemo. I wish she wasn't taking this route but she isn't of sound enough mind to take on a natural approach..she just doesn't understand enough. I am supporting her decision and trying to help as much as I can in the circumstance.

SHe is so ill, she is nauseous and throws up if she eats more than just a little. Can anyone tell me of a natural way to eliminate nausea...I dont want her to up her anit nausea pills and put even more chemicals into her body. She has no hope of getting better if she cant put anything healthy in to her body because she just throws it up.

Also, the whites of her eyes are looking a little yellow. I imagine that is because of her liver, does anyone know of something simple I can get her to do to help protect/heal her liver. She gets overwhealmed wehenenver I try to get her to do anything even a little complicated?

My most sincere thanks goes out to anyone who can offer any advice.