Feeling coughing and phlegm all the time is mainly caused by inflammatory diseases of the respiratory tract, which can cause bronchitis and lung infections resulting in coughing and phlegm due to infection by viruses, bacteria and other pathogenic microorganisms. If there is no active treatment or incomplete treatment, it will feel like there is always phlegm causing chronic bronchitis. It is necessary to go to the hospital for routine blood tests, chest X-ray, sputum examination and drug sensitivity test if necessary, and then actively treat the disease with more sensitive drugs under the guidance of the doctor according to the test results. During the treatment period, you need to pay attention to diet and rest, and if you smoke, you need to quit smoking, mainly because frequent smoking can also irritate the throat and airways, which can easily cause chronic inflammation.