If you smoke more and cough with more phlegm, you can choose to take drugs to relieve the symptoms. Clinically, it is mainly common to have chronic inflammation in the airways, such as chronic bronchitis, when you can take appropriate drugs that can clear the lungs and resolve phlegm, such as Nourishing Yin and Clearing Lung Pills, Honey Refined Chuanbei Loquat Paste, Snake Bile and Chuanbei Liquid, Snake Bile and Chenpi San, Myrtle Oil, Brown Combination, Lung Power Cough Combination, etc. For wheezing and shortness of breath, you can also use compounded drugs, such as fenagan cough syrup and compound methonamine capsule, which can stop cough, resolve phlegm and calm wheezing. For combined bacterial infection, you should take appropriate antibiotics, such as amoxicillin, cefuroxime, clindamycin, levofloxacin and other drugs.