Pear is a common fruit in life, with delicious flavor, containing protein, sugar, fat, carbohydrates and a variety of vitamins. Eating pears properly can replenish water and nutrients needed by the body, which is beneficial to health. However, pear is only a fruit, not a drug, no cough and phlegm effect. Cough with phlegm, consider and pathologic factors, such as colds, pharyngitis, bronchodilatation, chronic bronchitis, pneumonia and other diseases, may lead to an increase in throat secretions, causing coughing, coughing up phlegm and other symptoms. It is recommended that patients with cough and phlegm, usually drink more water, eat more fresh fruits and vegetables, and if necessary, go to the respiratory medicine department of the hospital, under the guidance of the doctor to give treatment, which will help the recovery of the disease.