The diet of patients after chemotherapy for small cell lung cancer should be light and easy to digest, avoid eating beef, mutton, dog meat and other foods that are easy to injure the fluid and intensify the fire, eat sea fish, sea cucumber, oysters and other seafood, and avoid spicy and stimulating foods and stimulating condiments. Because these foods are easy to stimulate the respiratory tract, causing coughing, coughing up phlegm and other related symptoms. Avoid eating fried, smoked and pickled food. If patients experience nausea and vomiting after chemotherapy, they can eat nourishing porridges such as millet pumpkin porridge or rice and yam porridge, and they can eat foods such as apples, bananas, tomatoes and cucumbers. If the symptoms of deficiency of qi and blood such as lowering of white blood cells and fatigue occur after chemotherapy, foods such as wolfberry, silver ear, lotus seed, red bean, peanut, red date can be consumed to benefit qi and nourish blood.