Usually coughing up yellow pus-colored sputum may be caused by chronic pharyngitis, pneumonia, bronchitis, etc., which can be relieved by applying medication and adjusting lifestyle habits. 1. Chronic pharyngitis: may be due to poor lifestyle habits (smoking), external environmental factors, etc., often may be accompanied by coughing, pus-colored sputum, dry and itchy throat, etc., it is recommended that the patient can be prescribed to apply borax solution, furacillin solution and other medications for treatment. 2. Pneumonia: generally may be due to the impairment of the immune system, bacterial infection and other reasons, usually may cause coughing yellow purulent sputum, cough, chest pain and other symptoms, it is recommended that antibiotics such as Ertapenem or antiviral drugs such as ribavirin according to the doctor’s instructions for treatment. 3. Bronchitis: Bronchitis may be caused by pollen, fur allergies, viral infections, etc., the emergence of this type of disease may cause coughing yellow pus-colored sputum, nausea, vomiting and other symptoms, it is recommended that patients in addition to medication, should be appropriate to adjust their habits, to develop a good routine, quit smoking, appropriate aerobic exercise, physical exercise, to enhance the body’s resistance and immune system, which is conducive to relieving symptoms. This will help to alleviate the symptoms. Coughing up yellow pus-colored sputum is related to other diseases. Patients with this symptom should go to the regular hospital in time to confirm the diagnosis, to clarify the cause of the disease, under the guidance of the doctor for diagnosis and treatment.