When a cough occurs, whether it is better to give an injection or to take medicine is based on the cause of the cough. Most coughs are often caused by infections of the upper respiratory tract, and it is not recommended to give injections at this time. Oral medications are more effective, such as Pudilan Anti-inflammatory Oral Liquid and Blue Scutellaria Oral Liquid for treatment. If the symptoms are accompanied by bacterial infection, you can also take oral antibiotics for treatment. If you are not allergic to penicillin, you can use amoxicillin and amoxicillin clavulanic acid potassium. If the cough is caused by an infection of the lower respiratory tract and the medication is not effective, it needs to be treated by injection, and it needs to be treated by intravenous infusion, and according to the type of infection, appropriate antibiotics and antiviral drugs are selected for intravenous drip treatment. If the cough is caused by cough variant asthma, injections are generally not recommended.