Children with bacterial infections after the fever is reduced dry cough, should continue to use antibacterial drugs, at the same time to check whether there is a combination of other infections, if necessary, the use of cough suppressant drugs. 1. Antibacterial drugs: If the bacterial infection is not treated completely, or will continue to cough, then with the use of antibacterial drugs such as cefixime and other treatment. 2. Other causes: If combined with influenza virus infection, you can use oseltamivir phosphate. Combined mycoplasma infection can use its sensitive macrolides such as azithromycin granules. Allergic factors can be caused by the use of antihistamines such as loratadine. For cough variant asthma, glucocorticoids and leukotriene receptor antagonists such as montelukast sodium can be used. 3. Cough suppressants: commonly used are dextromethorphan, compound forcoding oral solution, etc. can treat severe dry cough. The above drugs need to be used under the guidance of a doctor, avoid self-medication. In addition, it should be noted that the causes of cough, in addition to the above respiratory system diseases, there are pleural diseases and cardiovascular diseases and other causes of cough, it is recommended that the patient consult a doctor in a timely manner, to clarify the cause of the disease to give standardized treatment.