If your one-year-old has a particularly bad cough, you need to go to the hospital for a blood test to determine what the causative agent of the cough is. If it is a viral infection, give an antiviral medication orally, such as ribavirin pellets or an antiviral oral solution. If the infection is bacterial, cephalosporin or penicillin antibiotics should be given orally. In case of mycoplasma infection, give macrolide antibiotics such as azithromycin or erythromycin for oral treatment. If your child has a strong cough, you can give him/her nebulizer inhalation treatment, such as terbutaline or budesonide nebulizer, which can significantly relieve the symptoms of coughing, and at the same time, the medication can act directly on the airway, which helps to humidify the airway and facilitate the discharge of phlegm. When the child’s cough is particularly severe, intravenous infusion therapy can be used to relieve the child’s coughing symptoms if necessary.