Cough is a common symptom of respiratory tract diseases and vomiting is a common symptom of gastrointestinal tract diseases, usually occurring alone, but sometimes simultaneously. If the cough is more violent or if the patient is young and cannot spit, swallowing of sputum into the stomach may lead to vomiting with coughing, mainly due to stimulation of the medulla oblongata center by coughing or irritation of the pharynx by sputum. Common causes of coughing with vomiting are mostly seen as a result of upper respiratory tract infection after cold or cold air irritation with sputum, sticky and violent cough. The cough stimulates the pharyngeal reflex and symptoms of nausea and vomiting occur. If the above symptoms appear after using central cough suppressants and cough suppressants containing codeine for coughing, the cough suppressants need to be stopped and phlegm-suppressing drugs such as aminoglutethimide and bromhexine can be added under the guidance of a doctor, and sputum can be excreted by patting the back and, if necessary, treated with nebulizer therapy to dissolve sputum. As coughing with vomiting is mostly related to cold, drink more water and keep warm. When coughing with vomiting occurs, you should also pay attention to the presence of fever, diarrhea and other discomforts, and pay attention to the occurrence of lung infections and gastrointestinal infections. In short, when coughing and vomiting symptoms occur, it is necessary to observe the changes in the condition and recommend specialist consultation if necessary.