Smoking and drinking tea usually cannot clear the lungs. When a patient smokes for a long time, the toxic substances in the smoke will cause obvious damage to the lungs and the toxic substances can accumulate in the lungs, which has a greater impact on the body. Drinking tea does not clear the lungs, because tea is a common beverage, not a drug, and does not have the therapeutic effect of drugs. Smokers can drink some tea in their daily life, which helps to replenish water and can moisturize the throat. It should be noted that tea should not be consumed in excess to prevent the tannins in tea from causing gastrointestinal irritation, causing abdominal pain or diarrhea and other symptoms. For those who smoke frequently and experience coughing symptoms, you can apply phlegm-reducing and cough-relieving medications to help clear the lungs, such as bromhexine hydrochloride, aminoglutethimide hydrochloride and so on, and you can also apply lung-cleansing oral solution and other medications to treat the cough, but pay attention to the need to follow the doctor’s instructions for the use of medication. Patients should develop good habits in daily life and avoid smoking as much as possible.