If a child coughs and then wheezes a lot, it is mainly due to the following reasons. First, the symptoms are caused by capillary bronchitis in children with respiratory syncytial virus infection, which often causes capillary bronchitis, resulting in coughing and shortness of breath, and can be promptly treated with oxygen and nebulized inhalation with Policonid and budesonide. Secondly, due to the symptoms caused by bronchial asthma in children, coughing often appears in the early stage of the onset of bronchial asthma, and shortness of breath will slowly appear after 2-3 days of onset, which can be relieved by bronchodilator drugs, such as Ventolin.