Children with recurrent cough for a year need to consider recurrent respiratory infections, sinusitis, cough variant asthma and other causes. 1. Recurrent respiratory infections: in the diagnostic criteria, they are categorized into upper respiratory tract infections and lower respiratory tract infections. It is more likely to occur when the child has low resistance. 2. Sinusitis: If the child has sinusitis, the nasal mucus flows to the back wall of the throat, constantly stimulating the throat and then repeated coughing, can further improve the nasopharyngoscopy. 3. Cough variant asthma: some children repeated dry cough, antibiotic treatment is ineffective, need to consider cough variant asthma, it is recommended to further improve the lung function test. The child a year repeated cough, there may be other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.