Frequent spitting is mainly due to chronic diseases of the respiratory tract, in the clinic is common in chronic inflammation of the pharynx and chronic bronchitis, with chronic inflammation of the pharynx will feel a foreign body sensation in the throat, and will spit out a small amount of white sputum, with chronic bronchitis will appear coughing, coughing up phlegm symptoms, and may cause asthma. These two diseases are relatively long, often smoking, exposure to irritating gases are easy to cause, need to pay attention to protection, to quit smoking, but also need to pay attention to diet, avoid eating spicy food. If the symptoms are more serious you need to use drugs to actively treat, there are chronic inflammation of the throat can be taken orally to clear the throat drops, slow Yan Shulime and other drugs, chronic bronchitis need to use cough and phlegm, antibacterial and anti-inflammatory drugs.