Bronchitis is clinically called chronic bronchitis if it recurs frequently. In most cases its attacks are related to inhalation of dust and smoke, as well as smoking, and if the disease is found to have this condition, treatment can be given to dissolve phlegm, stop coughing, and calm asthma. The first thing to do is to quit smoking and smoke. Years of smoking or exposure to tobacco can cause bronchitis for a long time. Secondly, you can use some better cough suppressants and phlegm relievers, such as tranylcypromine, acetylcysteine, carboxymethylstilbestrol or dextromethorphan for cough suppression, which are very effective.