How should child cough to vomit to do

The child vomited as soon as he coughed, which may be caused by frequent severe cough leading to increased intra-abdominal pressure. It is recommended to diagnose the cause of cough first. If it is caused by bacterial infection, drug sensitivity test should be performed to select antibiotic treatment. Meanwhile, antitussive and expectorant drugs should be given, such as ambroxol hydrochloride tablets orally.