Don't detox fast. Never a good thing. Use carrot juice for liver detoxing - gentle - and have her take Milk Thistle to support the liver.
I depends on what she can afford.
For a good effective treatment that you can now get if you are in North America is Varumin - well documented in Europe for near two decades of effective cures. Check out www.varuminusa.com and read up on it.
At Jesicha's Hope we can help you with detox options. A near infra red light will help give heat and weaken the cancer. google us and we can assist, never any charge.