Pain in the throat after vomiting is caused by the reflux of vomited stomach contents, mainly stomach acid, through the esophagus to the throat, which is highly irritating to the mucous membrane of the throat. Stomach acid irritates the mucous membrane of the throat, resulting in inflammation of the mucous membrane of the throat and pain in the throat. If gastroesophageal reflux occurs regularly, it is one of the main causes of inflammation of the throat. Gastroesophageal reflux disease is the main cause of chronic inflammation of the mucous membrane in the pharynx, nasopharynx, and even the nasal cavity, as well as the oral cavity. In case of chronic coughing for a long time, in many cases it is also caused by gastroesophageal reflux. In case of frequent vomiting, you need to visit the gastroenterology department of a hospital to identify the cause of vomiting and to treat it under the guidance of a doctor.