Coughing can be a troublesome thing. A mild cough is a physiological defensive action, but a violent and continuous cough is a pathological reaction. Severe coughing is not only very painful, but may also bring a series of adverse effects to the patient. For example, in the case of tumor patients, the disease is already aggressive, the treatment is very strong, and the patient’s body is already tired. Tumor cough is similar to general cough, and can be divided into two categories: physiological cough and pathological cough. Choking on water, inhaling cold air, occasionally coughing or coughing sputum are all protective physiological reactions of the respiratory system, which are good. However, when allergens such as bacteria, viruses, pathogens, pollen, etc. carry the airway and stimulate the vagus nerve, causing high-frequency abnormal movements of the pharyngeal muscles, diaphragm, and smooth muscles of the trachea, the resulting cough is pathological. Pathological cough can also be caused by some therapeutic drugs, such as some anti-arrhythmics, anti-coagulants, anti-allergic drugs, anti-tuberculosis drugs, anti-epileptic drugs, or immunosuppressive drugs, or even anti-tumor drugs, which may cause pharmacogenic cough. There are roughly two kinds of coughs in tumor patients: one is caused by tumors in the respiratory system that irritate and cause coughing, such as primary or secondary lung cancer, bronchial cancer, tracheal cancer and throat cancer; the other is caused by coughing due to damage to the respiratory tract during cancer treatment, such as esophageal cancer, pancreatic cancer, lung cancer and other chest tumors during radiation therapy, the high-intensity rays not only kill the tumor cells, but also For example, when radiation therapy is performed on chest tumors such as esophageal cancer, pancreatic cancer and lung cancer, the high-intensity radiation not only kills the tumor cells but also damages the normal cells of the respiratory system to varying degrees, causing cough. Continuous and violent coughing tends to spread local pathogens and germs to small bronchi, thus aggravating the disease; it also tends to destroy the elastic tissue of alveoli and even rupture the alveoli to induce emphysema; in addition, continuous and violent coughing prevents patients from resting quietly, and sometimes they cannot even rest all night, which greatly damages patients’ resistance and weakens their fighting power to annihilate tumors. Thus, it can be seen that cough has a great impact on tumor patients and its negative effects are obvious. The treatment principle for cough in tumor patients is usually to add adjuvant treatment to relieve cough while adhering to the original anti-tumor treatment. After all, the former is the main contradiction compared with the cough relief, so the established anti-tumor therapy should be adhered to as long as it can be tolerated. As for the relief of cough, Chinese herbal medicine can be used with the treatment in order to gradually control the cough and resolve the secondary contradiction, so as to avoid the cough from rising to the main contradiction and affecting the anti-tumor treatment. In conclusion, trying to alleviate or eliminate painful cough symptoms to ensure smooth anti-tumor treatment is undoubtedly the treatment principle of tumor cough. The use of TCM to treat cough should be treated by a professional doctor, and in addition to that, the diet can be adjusted. Generally speaking, it is best not to eat anything that is fragrant, spicy or scrapes the throat. It is better to take something cool and moisturizing such as honey-refined Chuanbei loquat paste to protect the respiratory tract. Although the cough of tumor patients is harmful and not easy to cure, it is not a hurdle that cannot be overcome. We hope that patients can work hard together with doctors to eliminate cough until they achieve a full victory against tumor!