Children’s cough is always bad can be seen in respiratory tract infection, cough variant asthma, respiratory foreign body, etc., according to the cause of the reasonable formal treatment, such as respiratory tract infection need anti-infective treatment, cough variant asthma need to be treated with inhaled hormone therapy, respiratory foreign body need to be removed in the bronchoscopy, etc.. 1. Respiratory tract infections: for this kind of children need to be under the guidance of the physician to carry out regular full course of treatment, avoid stopping the drug, such as suspected bacterial or Mycoplasma pneumoniae infection of children need to use cefaclor or azithromycin anti-infective treatment, and at the same time, need to pay attention to the daily enhancement of physical fitness. 2. Cough variant asthma: Clinical recurrent cough, ineffective anti-infective treatment, parents can describe it as “cough is always bad”, and pulmonary function tests can suggest that the airway reactivity is increased. The treatment should be nebulized with budesonide, or oral treatment with montelukast sodium, with regular follow-up and dosage reduction according to the doctor’s instructions. 3. Respiratory foreign body: the above phenomenon can also occur if the foreign body is in the trachea. Chest CT examination can assist in the diagnosis, and the treatment requires tracheoscopic removal of the foreign body, and the use of antimicrobial drugs, such as cefaclor or cefuroxime and other anti-infective treatments if the infection is secondary to the trachea. The above medications should be used under the guidance of a physician, and it is recommended to consult a medical doctor to guide the treatment after judgment by a specialist. There may be other reasons for children’s coughing, so it is recommended to go to the hospital in time, complete the examination to clarify the cause of the disease, and then give targeted treatment or therapy.