Coughing with vomiting is usually considered to be caused by coughing that stimulates increased intra-abdominal pressure, or reflux esophagitis, or due to side effects of medications. 1. Coughing stimulates the intra-abdominal pressure to increase and cause vomiting. When coughing, the intra-abdominal pressure increases suddenly, which may stimulate the receptors related to vomiting, causing vomiting. 2. Reflux esophagitis, patients usually after meals due to gastroesophageal contents, gastric acid reflux, stimulation of the mucous membrane of the pharynx, coughing, and vomiting may occur, usually manifested as dry vomiting mostly. It is recommended that patients take oral omeprazole or pantoprazole as prescribed by the doctor. 3. Drug side effects can also cause vomiting, due to respiratory tract infections caused by coughing patients, may take antibiotics, most antibiotics will have gastrointestinal discomfort side effects, such as abdominal pain, vomiting, etc., at this time need to be considered under the guidance of the doctor to reduce the amount of medication or discontinue treatment. Cough with vomiting may also be seen in other conditions and it is advisable to seek medical advice. The above medications should be used under the supervision of a physician.