When coughing incessantly, the following common methods can be used to relieve it: First, drink more and more water appropriately, and take rest to promote the recovery of body resistance. Second, use symptomatic supportive treatment such as cough suppression. Third, if the cough is not relieved, you can go to the hospital for appropriate tests, such as chlamydia tests, ortho-lateral lung films or CT lung tests, to check for bronchopneumonia, and then give targeted treatment according to the results.