If you have a dry cough at night, you can first take a bronchodilator to relieve the symptoms of dry cough. Both adults and children can chew a chewable tablet of montelukast sodium before going to bed, which is a leukotriene inhibitor that can effectively stretch the bronchi and relieve the symptoms of dry cough, especially for dry cough caused by cough variant asthma or asthma, the effect will be better. In addition, if dry cough caused by respiratory infection occurs before going to bed, you also need to use cough expectorant drugs at the same time, such as Ambroxol Hydrochloride, Ambrotero Oral Solution, Pulmonary Cough Combination or Niubizi and Serpentine Chuanbei Liquid, all of which are more effective.2. If the cough is purely dry and not caused by infection, you can also take fenugreek syrup for cough treatment, which is also more effective.3. If the effect is not good, it is recommended that nebulized inhalation of bronchodilators to relieve the symptoms of dry cough, such as nebulized inhalation of terbutaline sulfate and budesonide.