Smoking phlegm can eat common phlegm food, such as pears, pipa, silver ear, etc., the drug can take cough particles, Su Huang cough capsule, etc.. Smoking can cause different degrees of cough, cough phlegm, mild can use some common food and drugs to resolve phlegm, food such as pears, pipa, oranges, lotus seeds, fungus, lily and so on can resolve phlegm. In moderate cases, it is recommended to use medication. Chinese medicines such as Cough and Phlegm Granules and Su Huang Cough Capsules can clear away heat and stop coughing; western medicines such as Acetylcysteine and Myrtle Oil can also be used to reduce phlegm. If the phlegm is thick and the symptoms are aggravated, the following three categories of phlegm removing drugs are used more often in clinical practice. 1. Ammonium chloride and guaiacol glyceryl ether: these drugs belong to the nausea and stimulation class of phlegm remedies, and there will be mild nausea after taking them. 2. Acetaminophen: phlegm thinner class, cause phlegm dilution after taking, easy to cough out. 3. Ethylene bromide and carboxymethyl stannum: mucus regulators, can stimulate the secretion of mucus cells after taking, after dilution of mucus is easy to cough out. Patients can choose appropriate food or drugs to promote phlegm according to their own situation. Smoking is harmful to health, and patients are advised to quit smoking as soon as possible.