I sympathize with your father. Your father's throat cancer is so serious. I don't know any other good methods. I once saw a folk remedy for treating phlegm cough on the Weibo of Waiting for the Teacher's Lifeline. I hope it can be used. I can help you with this folk remedy for treating phlegm and cough: use 2 taels of white radish and 2 taels of pears each time, chop them together, add a bowl of water and cook, add an appropriate amount of rock sugar and eat it, twice a day, use it for 3 days to relieve cough. phlegm. Avoid eating fish. Diet therapy is better than medication