Patients with bronchitis can develop shortness of breath if they develop hyperresponsiveness of the airways. If the patient presents with symptoms of shortness of breath, it is necessary to improve the lung function, bronchodilator test, blood routine and other related examinations. If the patient’s blood routine suggests that eosinophils, eosinophil percentage is obviously elevated, or if the bronchodilator test is positive, it is considered that the airway hyperreactivity occurs, and it is necessary to add oral montelukast sodium, as well as inhalation budesonide formoterol, salmeterol ticlopidine, and other related medications, and at the same time, it is necessary to pay attention to avoiding contact with easily allergic substances. If the patient’s condition is serious, oral theophylline drugs, such as aminophylline, doxophylline, etc., at the same time, pay attention to rest, avoid getting cold, drink more water, keep enough sleep, eat more fresh vegetables and fruits, improve their own immunity, and promote the recovery of the disease.