Patients who cough up yellow phlegm should eat a light diet and avoid spicy stimuli. At the same time, supplemental nutrients, including foods rich in protein and vitamins and other nutrients. Cough, cough yellow sputum can be seen in a variety of diseases, such as respiratory infectious diseases, bronchial dilatation, sinusitis, etc., need to clarify the cause of the disease, active treatment of the primary disease, and at the same time need to pay attention to a healthy diet, nutritional collocation, to provide the body with the nutrients needed to promote the recovery of the disease. First of all, we should pay attention to light diet, do not eat spicy stimulation, greasy food, such as hot pot, spicy hot, barbecue, oil cake, etc.. Secondly, we should pay attention to strengthening nutrition, for example, we can eat more fish, lean meat, eggs and other protein-rich foods, and we can also eat vitamin-rich foods, such as some fresh vegetables and fruits, including apples, pears, bananas, cucumbers, bok choy, pumpkins and so on. Patients with cough and yellow sputum are advised to drink more water, pay attention to rest and avoid exertion. If the symptoms do not get better, it is recommended to consult a doctor in time to clarify the cause of the disease and follow the doctor’s instructions for treatment.