Coughing and vomiting again is common in the following areas: First, coughing can stimulate the diaphragm and cause nausea and vomiting, especially for patients with a more intense cough. Second, gastrointestinal colds. Gastrointestinal cold can appear cough, coughing phlegm, nasal congestion, runny nose, but also nausea, vomiting, and even abdominal pain, abdominal discharge and other symptoms. Third, drug reactions. There are some drugs for cough or anti-inflammatory that irritate the gastrointestinal tract and can cause nausea, vomiting, and even abdominal pain and diarrhea. If there is another cough and vomiting, you should go to the hospital for further examination to find out the cause.