Cough is a common respiratory symptom, and its can be caused by a variety of reasons. In general, patients with coughs should be given adequate hydration and calories if their physical condition allows. Adequate daily water intake helps to maintain the moistness of the respiratory mucosa and facilitates coughing and phlegm. Also ensure adequate intake of protein and vitamins, such as lean pork, eggs, pears, oranges, etc. It should be noted that in reality, the cause and severity of each patient’s illness can vary significantly, and diet is only one part of the disease treatment. Therefore, if you have any discomfort, it is recommended to actively consult a doctor, who will develop an appropriate treatment plan and give you reasonable dietary advice according to your specific situation.