There is no such thing as a “root cause cure” for cough. Cough can be caused by a variety of reasons, such as the common cold, pharyngitis, cough variant asthma, etc., need to identify the cause of the disease to give targeted treatment in order to effectively alleviate the symptoms. 1. Common cold: mainly caused by viral infection of the upper respiratory tract infection symptoms, may appear sore throat, cough, cough, sputum, runny nose, nasal congestion and other symptoms. If the symptoms are mild, there is no need for medication, so drink plenty of water and rest. If the cough symptoms are serious, you can use Ambroxol, Bromhexine and other cough and phlegm symptomatic treatment. 2. Pharyngitis: Whether it is acute pharyngitis or chronic pharyngitis, there will be coughing symptoms, but also sore throat, pharyngeal itching and other discomforts, and related to bad habits, such as frequent smoking and drinking, spicy and spicy habits, you can take the blue scutellaria oral solution, pharyngitis tablets and other drugs. 3. Cough variant asthma: it is a kind of airway hyperresponsive disease, which can be manifested as chronic cough, often coughing or aggravated at night. It can be treated with inhaled glucocorticoids such as budesonide powder inhaler or leukotriene receptor antagonists such as montelukast. Cough can also be caused by other diseases such as chronic bronchitis, cardiac insufficiency, gastroesophageal reflux, and post-infectious cough. If the symptoms are not relieved or aggravated, it is recommended to consult a doctor in time, improve the examination, clarify the cause of the disease, and standardize the treatment under the guidance of the doctor. Drink plenty of water during coughing and avoid spicy and irritating food.