Bronchitis is a common respiratory disease, and clinically, it often presents with symptoms such as fever, cough, and expectoration. Some patients may also experience chest tightness and shortness of breath, and they should consult a respiratory medicine department. After the visit, the doctor may conduct tests including a complete blood count, C-reactive protein, chest imaging, etc., to confirm the diagnosis of bronchitis. In terms of treatment, the first step is to use medication based on the cause of the disease; for example, if it is caused by bacterial infection, sensitive antibiotics will be used for treatment. Additionally, symptomatic treatment medications may be chosen based on symptoms, such as cough suppressants and expectorants, etc. (Specific medications should be used under the guidance of a doctor.)