Midnight cough is because the vagus nerve is more easily excited at night, leading to contraction and spasm of the bronchial tubes, which results in a midnight cough, and some patients may wake up coughing. Choosing to take bronchodilator drugs can relieve the symptoms of coughing, as follows: 1. You can choose to chew montelukast sodium chewable tablets half an hour before bedtime, which can effectively relieve the coughing situation at night; 2. You can choose bronchodilators, especially local use of bronchodilators, such as salbutamol, terbutaline drugs, dosage forms, such as nebulizer at home, you can use nebulization, or you can buy inhaled dry powder preparations or aerosols; 3. Patients with underlying diseases can also inhale glucocorticoids, such as budesonide, salmeterol Selective long-acting beta2 agonists, not glucocorticoids, fluticasone, give a certain amount of drug inhalation before bedtime, and after inhaling the drug patients must rinse their mouths and drink more water; 4. When the air is drier, breathing with the mouth open at night can also cause airway dryness, because the airway a Dryness can also cause coughing, so drink more water before going to bed, which can also relieve the symptoms of coughing in the middle of the night.