There are many reasons for coughing up phlegm all the time, commonly such as viral colds, tuberculosis and chronic bronchitis. It is important to treat different causes in order to get well faster. 1. Viral colds: its symptoms are mostly coughing with white phlegm, no specific antiviral drugs, symptomatic treatment. When coughing with phlegm, you can give cough suppressant and phlegm dissolving drugs such as compound licorice tablets, aminobromine and so on for treatment. 2. Tuberculosis: Tuberculosis is a chronic disease, its main symptom is coughing and coughing up sputum, sputum is mostly white mucus sputum. Anti-tuberculosis drugs can be used including isoniazid, rifampicin and pyrazinamide. 3. Chronic bronchitis: Chronic bronchitis is a chronic non-specific inflammation of the mucous membrane of the trachea, bronchial tubes and their surrounding tissues, which can cause symptoms such as coughing, coughing up sputum and wheezing. It is recommended to quit smoking, strengthen exercise, pay attention to cold and warmth. You can use levofloxacin, roxithromycin, compound licorice combination and other drugs to treat. There are many reasons for coughing up phlegm all the time, so it is recommended to go to the hospital in time, clarify the cause of the disease, and carry out treatment under the guidance of the doctor. Drug treatment, but also pay attention to life and diet care, can promote recovery. The above drugs need to be standardized and rationally used under the guidance of professional physicians and pharmacists.