Cough and bronchitis are treated with intravenous medications. First, the type of bronchitis infection should be identified. If there is yellow sputum or elevated white blood cells, the bronchitis is often a bacterial infection and requires intravenous ceftriaxone, cefoperazone or levofloxacin for anti-inflammatory treatment. Coughing up white, thin sputum or an increase in C-reactive protein is often a viral infection causing bronchitis and coughing, and requires anti-inflammatory treatment with intravenous Xiyampin or Ribavirin. If there is a positive mycoplasma antibody, it means that the cough and bronchitis are caused by Mycoplasma pneumoniae infection, which needs to be treated with intravenous drip macrolide antibiotics, such as azithromycin, roxithromycin or erythromycin, which are more effective. In addition, it needs to be combined with cough and phlegm relieving drugs, such as pulmonary cough combination or tranylcypromine oral solution.