If your child has a viral cough, you can apply: 1. Anti-viral treatment, you can take oral anti-viral drugs of the traditional Chinese medicine type, commonly used are anti-viral oral liquid, Shuanghuanglian oral liquid, Qingkailing oral liquid or capsule, etc. If it is diagnosed to be caused by the influenza virus, you can take Oseltamivir phosphate granules orally. 2. Cough relief and phlegm dissolution, if your child has a dry cough more frequently, you can take dextromethorphan syrup orally. If there is a lot of phlegm, you can choose drugs mainly to dissolve phlegm. Western medicine includes oral solution of Ambroxol hydrochloride, acetylcysteine granules, etc. Chinese medicine includes oral solution of expectorant spirit, acute syrup, pediatric phlegm granules, etc. You can also use inhalation acetylcysteine for nebulization to dilute the phlegm for coughing out. If it is accompanied by wheezing, budesonide and terbutaline sulfate nebulizer solution can be used to reduce airway spasm and relieve symptoms.