Cough is a respiratory symptom that does not usually clear up immediately after taking montelukast. However, any medication for cough requires a certain amount of medicine and treatment time, and there is no medication that can cure cough immediately. Montelukast is a preventive and therapeutic drug for asthma and is useful for some types of coughs, but not for all types of coughs. Montelukast is a leukotriene receptor antagonist that reduces the inflammation of the respiratory tract by regulating the activity of leukotrienes, thus relieving the symptoms of cough. Patients should be aware that montelukast is not a direct treatment for other types of coughs such as wind-cold or wind-heat. There are many clinical causes of cough symptoms and no standard protocol has been developed for their treatment. Generally, for episodic coughs caused by foreign bodies such as pollen or food that irritate the respiratory mucosa while breathing, most of them do not require special treatment, and the cough symptoms will improve after the foreign body is expelled. If the cough is severe or accompanied by other pathological changes, the patient needs comprehensive treatment according to the cause of the cough and the doctor’s advice. For example, coughs caused by respiratory tract infections can be relieved by taking cough syrup and Chuanbei Loquat Paste as instructed; coughs with phlegm can be treated with cough and phlegm-relieving drugs such as Ambroxol Hydrochloride Capsules and Eucalyptus Pinellia Enteric Soft Capsules as instructed.