How can I help my husband survive colon cancer?

He has stage III, possibly IV, colon cancer. He has had a portion of his large intestine, along with the cancer removed. However 6 out of 10 lymph nodes in that portion contained cancer. Also the cat scan showed something in the liver but he is to get an MRI to determine if that is cancer or not. He will be... show more He has stage III, possibly IV, colon cancer. He has had a portion of his large intestine, along with the cancer removed. However 6 out of 10 lymph nodes in that portion contained cancer. Also the cat scan showed something in the liver but he is to get an MRI to determine if that is cancer or not. He will be receiving chemo. through a port, 2 days every week for 6 months. Are there any alternative or additional treatments available?
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