Food can only play the role of assisting in resolving phlegm, and cannot be used for treatment. Cough with yellow phlegm can eat some vegetables and fruits rich in water and vitamins, such as white radish, pear, banana, loquat, luohan fruit, figs and so on. Fresh vegetables and fruits such as white radish, pear, banana, loquat, etc. are rich in water and vitamins, which can serve to replenish nutrients and water, but have no therapeutic effect on the disease. Eat a light diet and avoid foods that are too cold, spicy and stimulating. Cough with yellow sputum may be seen in other respiratory diseases such as bronchitis, etc. It is recommended to go to the hospital to clarify the cause of the disease through chest imaging examination under the guidance of the doctor for the next step in the treatment.