Symptoms of coughing and vomiting: 1. Because the pressure in the chest cavity increases during coughing, the pressure in the chest cavity increases and compresses the abdomen, causing the abdominal cavity to increase in pressure, and the organs in the abdominal cavity are squeezed, the stomach is also squeezed and the stomach contents are easily squeezed out, so it is normal to experience coughing and vomiting. 2. The throat is a common channel between the digestive tract and the respiratory tract. If the throat is stimulated, symptoms of the digestive system will appear, such as nausea and vomiting, so coughing is the most important treatment measure at this time. You can take some cough and phlegm medicines, such as Ambrotero Oral Solution, Ambroxol Hydrochloride, and Pulmonary Cough Compound, which are effective.