Your wife is fortunate to have a partner in her fight for health. My father has been fighting cancer for 11 years. My mother is his partner of 50 years. She has been diabetic for 30 years, so he cares for her as she cares for him.
He remains physically active, pushing the limits of the extent he is able. This is to maintain his own strength and ability to care for my mother, as well as to encourage her to excercize.
He also eats a healthy diet, with lots of whole foods, low on the glycemic index. Cancer loves sugar. This helps my mother manage her diabetes.
Consider doing the Liver Flush yourself, then helping your wife. I've found that the flush is not bad if one uses really good olive oil and very fresh grapefruit, squeezed right before you flush. Shaken together, this tastes good -- like a salad dressing.