Hi, Thanks for writing in to us. Cancer is a condition in which there is uncontrolled proliferation of abnormal cells. If your father has stage 4 cancer then it is advanced disease and the treatment usually includes pain relief and slowing the progress of disease. Unfortunately with the recommended treatment and support, a patient having stage 4 cancer might survive for up to 2 years and without treatment the end is much closer. Naturopathy is unlikely to help because it is a slow method of treating health problems. Cancer is an aggressive condition and it is not possible to control the multiplication of cancer cells by naturaopathy. In naturopathy the body is repaired in a slow pace and enough time is allowed for the various systems to return to their normal quality of functioning. This is not possible in a patient having stage 4 cancer and the rate of disease progress is much faster than the healing process. Your father might like to follow meditation techniques for pain management and to keep him comfortable with a regular dose of pain relief. Please provide him adequate nutrition and support.