When a cough occurs, if it gets worse after the injection, it means that the injection is not effective, and the medication used in this case may not be very reasonable. If asthma, cough variant asthma, or a cough caused by allergies occurs, the anti-inflammatory injection will not have any effect, but will get worse. At this time, in case of cough variant asthma or asthma-induced cough with positive bronchodilator test, treatment with bronchodilators and glucocorticoids and nebulizer inhalation is required. For example, a nebulizer can be used for nebulized inhalation of terbutaline sulfate and budesonide. In case of allergic cough with a history of exposure to allergens, anti-allergic drugs are needed for relief, such as desloratadine and loratadine for anti-allergic treatment, which are also more effective. There are more causes of cough and more types of infections. It is best to do sputum culture and select the appropriate medication for intravenous drip treatment according to the results of the drug sensitivity test.