Smoking phlegm, cough, the first thing to do is to quit smoking, phlegm and cough, often suggest that there is inflammation of the respiratory tract, because cigarettes contain tar, nicotine, carbon monoxide, nitric oxide and other harmful substances, especially to the respiratory tract is easy to produce damage, easy to cause bronchitis, pneumonia and other diseases, and even cause lung cancer lesions. Therefore, the first thing to do is to quit smoking and avoid second-hand smoke. If you have a cough with a lot of phlegm, you can use some anti-inflammatory and coughing drugs, such as cefdinir or amoxicillin, levofloxacin, honey-refined Chuanbei loquat, aminobromine dispersible tablets and other drugs. You should eat a light diet, eat less spicy and stimulating things, eat more vegetables and fruits, and quit smoking and drinking.