After immunization, the symptoms of coughing can be taken, and need to be treated quickly with medication to avoid adverse reactions. First of all, blood tests and C-reactive protein are needed to clarify the type of cough. If the cough is caused by bacterial infection, there will be elevated leukocytes or neutrophils in the routine blood test, and oral antibiotics are needed for treatment, such as cephalosporin without allergy, you can use cephradine, cefaclor or cefadroxil. If there is no allergy to penicillin, oral amoxicillin or amoxicillin clavulanate potassium can also be given. If there is a simple elevation of C-reactive protein, the cough is more commonly caused by viral infections, and it is recommended to use antiviral medications, such as oral ribavirin, Pudilan Anti-inflammatory Oral Liquid, or Scutellaria Oral Liquid, which are more effective in treating coughs. In addition, a combination of expectorant medications, such as Ambroterol Oral Solution or Pulmonary Cough Compound, is also needed.