Always spitting white sputum is mainly considered to be caused by chronic respiratory infections, chronic inflammation of the throat, chronic bronchitis caused by the most likely, you need to go to the hospital to do a checkup, to find out the causes of active treatment. Generally need to take blood tests to do routine blood tests, also need to take a chest X-ray, do sputum test, drug sensitivity test, according to the results of the examination under the guidance of the doctor with medication. Usually also need to pay attention to diet and rest, enhance physical fitness, prevent acute infection of the respiratory tract. Chinese medicine believes that this symptom is related to spleen deficiency and dampness, and that weakness and lack of vital energy can cause water and dampness to coagulate into phlegm, which needs to be treated with medicines that strengthen the spleen and dispel dampness, and tonify the middle and benefit the vital energy. In the diet also need to pay attention to light diet, avoid eating more greasy food, also best not to eat too sweet food.