Duck pear belongs to a kind of common food, for cough does not have the efficacy of treatment, only can provide the body with the nutrients contained in duck pear. Cough is one of the most common clinical respiratory symptoms, it is the body of a reflex defense action, can help the body out of the respiratory tract of foreign bodies and secretions. Clinical some common diseases such as pharyngitis, bronchial dilatation, bronchial tuberculosis, tracheobronchitis and so on can cause cough. Duck pear only belongs to the food, does not belong to the category of medicine and food, so eating duck pear can only provide the body with the nutrients it contains such as carbohydrates, vitamin C, trace elements and so on. But for the cough does not have any therapeutic effect. If there is a cough, cough sputum and other upper respiratory symptoms, it is recommended to consult a doctor as soon as possible, in accordance with the doctor’s instructions standardized treatment, so as not to delay the condition.