Coughing even after taking montelukast sodium tablets may be caused by incorrect medication and the presence of other causes. There are many causes of cough, common causes include pneumonia, acute bronchitis, chronic obstructive pulmonary disease and so on. For different causes, corresponding treatment should be chosen. 1. Pneumonia: Bacterial pneumonia is usually treated with antibiotics first, commonly used drugs include amoxicillin, cefazolin, cefoperazone, etc., which will further improve the symptoms of cough through the treatment of pneumonia itself. 2. Acute bronchitis: generally have fever, cough, cough and other symptoms, the treatment can be oral amoxicillin, cough, cough symptoms can be nebulized treatment. 3. Chronic obstructive pulmonary disease: often manifested as shortness of breath, cough, sputum and other symptoms, should be used anti-infective, expectorant, bronchial antispasmodic agents such as aminophylline, salbutamol and so on. Taking montelukast sodium also cough should promptly seek medical attention to identify the cause, under the guidance of the doctor for treatment, should avoid blind self-medication.