Drink Pu 'er tea to warm the stomach. I hope your father will adjust his mentality, stop worrying about his past medical history, pay attention to his diet, eat more digestible food, drink more water and replace water with tea. Put the tea in the cup for one night and pour it out the next day. There are tea leaves piled up in the cup now. Therefore, drinking tea should also be decomposed by drinking water. First of all, recovery is a state of mind. Go for a walk with your father and communicate more. Dad must be very happy to see his son so filial. If he eats more and sleeps soundly, his appetite will slowly recover, and if he is well nourished, he will slowly gain weight. Be patient and filial! I hope your father will live a long and healthy life as soon as possible! ! !