There are many reasons for dry heaving at the end of coughing, which may be caused by pharyngeal diseases, increased intra-abdominal pressure caused by coughing and squeezing of the stomach. 1. Pharyngeal diseases: such as pharyngitis, due to prolonged irritation of the pharyngeal mucosa can cause dry heaving. Even if some people do not have pharyngeal diseases, but due to the pharyngeal reflex caused by severe coughing can also cause dry heaving. You can use watermelon cream tablets, peppermint tablets and other drugs to treat. When dry heaving, you should pat your back to avoid choking, take ginger tablets orally, and drink plenty of warm water. 2. Increased intra-abdominal pressure caused by coughing: A strong cough will lead to an increase in intra-abdominal pressure, squeezing the stomach and the symptoms of dry heaving. The disease that causes coughing should be treated in a timely manner, and the treatment method is different for different causes. There are many reasons for coughing and dry heaving, it is recommended that patients go to the hospital in a timely manner to identify the cause of the disease, follow the doctor’s instructions for treatment, the above drugs need to be rationally applied under the guidance of a physician.