A child who has had a recurrent cough for four months may have airway hyperresponsiveness because a cold or other upper respiratory tract infection can easily trigger airway hyperresponsiveness in a child, so a recurrent cough may occur. If hyperresponsiveness is present, the child should be given long-term anti-asthma treatment, such as chewing a chewable tablet of montelukast before bedtime. In addition, daily nebulized inhalation of terbutaline sulfate and budesonide is required for prophylaxis. Another cause of recurrent coughing in children is the possibility of recurrent upper respiratory tract infections, often caused by the child’s weak resistance. It is usually necessary to give the child more fresh fruits and vegetables rich in vitamin C to strengthen the child’s immunity, or to give the child a period of time to take Yu Ping Feng granules, which is also beneficial for regulating immunity.