The child has been coughing medicine does not work can be seen in the normal progression of the disease, not the rational use of drugs, medicine is not the right situation, the intervention needs to be based on the cause, if necessary, can be used to alleviate the nebulizer. 1. Normal progression of the disease: for example, the common virus caused by the cold, about a week or so, the viral infection will improve, but the cough will last about three weeks, this is the body’s normal process of clearing the virus, do not have to be too anxious. This is the body’s normal process of clearing the virus, and there is no need to be overly anxious. The cough needs to be assessed by a specialist, and if it is severe, nebulization (e.g., using budesonide) can be used to relieve the discomfort. 2. Failure to use medication appropriately: For example, in acute bronchitis caused by bacterial infection, oral cough medication alone is not enough, as long as the cause of the cough exists, the cough will persist. Need to use drugs for the cause of the disease, such as bacterial infections need to use cefaclor and other anti-infective drugs, mycoplasma infections need to use azithromycin and so on. 3. medicine is not appropriate: such as cough variant asthma is often manifested as repeated cough, but if you have been in accordance with the respiratory tract infection to take medicine, will not have the effect. Therefore, you should go to the regular hospital, follow the doctor’s instructions to improve the relevant examination, a clear diagnosis, and then targeted treatment. 4. Other: If the course of medication is insufficient, the above phenomenon may also occur, and the physician’s assessment to consider the cause of the need to continue to use the drug. All of the above drugs should be used under the guidance of a physician, and it is recommended to actively seek medical advice from a specialist physician to evaluate and guide the treatment.