(1) Eat more foods that can enhance immunity and resist lung cancer, such as coix seed, sweet almond, water chestnut, oyster, jellyfish, yellow croaker, turtle, crab, horseshoe crab, meretrix meretrix, sea cucumber, Poria, yam, jujube, Zaocys, green beans, mushrooms, walnuts, etc. (2) It is advisable to eat ginkgo, radish, mustard, almond, orange peel, loquat, olive, orange cake, jellyfish, water chestnut, kelp, laver, white gourd, loofah, sesame, fig, pine nuts, walnut, mussel, Siraitia grosvenorii, peach, orange and grapefruit. (3) Cucumber, wax gourd, bitter gourd, lettuce, eggplant, Nostoc flagelliforme, lily, amaranth, shepherd's purse, water spinach, cauliflower, purslane, plum, watermelon, pineapple, pear, persimmon, orange, lemon, olive, mulberry and water chestnut are suitable for fever. (4) Plum, lotus root, sugarcane, pear, cotton, jellyfish, sea cucumber, lotus seed, water chestnut, kelp, mustard wheat, black beans, tofu, shepherd's purse, eggplant, milk, crucian carp, turtle, mandarin fish, squid, yellow croaker, turtle, oyster and mussel should be eaten for hemoptysis. (5) Eat more foods that can reduce the side effects of radiotherapy and chemotherapy: goose blood, mushrooms, sharks, longan, Monopterus albus, walnuts, soft-shelled turtles, soft-shelled turtles, kiwis, water shield, day lily, jujube, sunflower seeds, apples, carp, mung beans, soybeans, red beans, shrimps and crabs, silver beans, loach and ponds. Avoid eating (1) avoid smoking and alcohol. (2) Avoid spicy food: onion, garlic, leek, ginger, pepper, pepper, cinnamon, etc. (3) Avoid hot foods such as frying and barbecue. (4) Avoid greasy, sticky and expectorant foods.