Children’s bronchitis can be treated symptomatically with expectorant drugs and causatively with antibacterial drugs and antiviral drugs for different pathogens. 1. Expectorant drugs: Ambroxol hydrochloride is commonly used. As children cannot cough up phlegm, doctors usually apply phlegmolytic drugs to help expectorate phlegm and speed up the recovery, and the common adverse reactions include nausea, vomiting, loss of appetite and other digestive symptoms. 2. Antibacterial drugs: If it is caused by bacterial infection, antibiotic treatment can be used, commonly used, including penicillin, amoxicillin and so on. Patients who are allergic to penicillin are commonly used drugs such as roxithromycin and azithromycin, which are prone to allergic reactions. 3. Antiviral drugs: If it is caused by virus, it can be treated with antiviral drugs such as ribavirin under the guidance of doctor, and the common adverse reactions are dizziness, vomiting, diarrhea and so on. If there is a need for medication, it should be used under the guidance of a doctor, and should not be taken on its own, so as not to cause adverse reactions.