One cough after another may be caused by respiratory tract infections, tuberculosis, cough variant asthma and other reasons. 1. Respiratory tract infections: mainly including colds, acute pharyngitis, bronchitis, etc., mostly due to the respiratory tract is infected by pathogens caused by the release of inflammatory mediators, resulting in increased respiratory secretions, which stimulate the respiratory tract triggered by non-stop coughing. 2. Tuberculosis: usually due to tuberculosis bacillus infection of the mucous membrane of the trachea and bronchial tubes, stimulation of the mucous membrane caused by coughing, with a dry cough is more common. The patient usually accompanied by low fever, night sweats, hemoptysis and other symptoms, and hemoptysis will aggravate the irritation of the airway, which will aggravate the symptoms of coughing, leading to continuous coughing. 3. Cough variant asthma: it can be caused by allergen stimulation of the airway, usually coughing is its only or main clinical manifestations, often at night and in the early hours of the morning, a violent cough, but also can be manifested as a one after another cough, usually irritating dry cough. 4. Other diseases, such as reflux esophagitis, patients may also experience the symptom of one cough after another. Mainly due to excessive secretion of gastric acid, reflux on the esophagus and pharynx mucosal irritation caused. In short, a cough, it is recommended to go to the regular hospital in a timely manner to find out the cause and targeted treatment.