Cough patients who are not allergic to corn can eat corn in moderation. Cough is a reflexive defense measure, with the protective effect of removing foreign bodies and secretions from the respiratory tract, often caused by respiratory diseases, such as acute upper respiratory tract infection, acute bronchitis, pneumonia, tuberculosis and other diseases. As respiratory infectious diseases have no contraindications for corn, it can be ingested. Corn is rich in starch, a large amount of dietary fiber, protein, carotene, vitamin E, vitamin B and a variety of minerals, moderate intake can be supplemented with nutrients for patients with cough and the need for minerals, the recovery of cough beneficial. But corn is not easy to digest, eat too much will increase the burden on the stomach and intestines, it is recommended to eat in moderation. Suspend consumption when coughing violently, so as not to cause choking. Diet during coughing should pay attention to light diet, nutritional balance. Cough and other symptoms, need to go to the hospital in a timely manner, find the cause of the disease, and follow the doctor’s instructions for treatment.