A cough is vomiting how, the human body’s trachea and esophagus of the common opening in the wall of the pharynx, the wall of the pharynx has a large number of nerves can be caused by reflexes, such as nausea, vomiting, etc., in the cough is serious when it is possible to cause vomiting, nausea reflexes. For patients who vomit when they cough, it is often due to the state caused by coughing too severely or having nerves in the pharynx. Treatment can be given to the patient with cough medicine, such as codeine phosphate or dextromethorphan oral solution, and at the same time to give the pharynx to reduce the sensitivity of the throat tablets, such as golden throat throat treasure, grass coral tablets can be treated.