As a result of smoking for too long, many people will have different degrees of lung damage, such as chronic bronchitis, or even emphysema. Measures can be taken to expel smoke toxicity from the lungs, for example, in the diet should eat more vegetables and fruits with relatively bright colors, such as horse feet, dragon fruit, grapes, grapefruit, kumquats, sorbets, and cucumbers, tomatoes, broccoli, cauliflower, kelp, nori, carrots, etc. You can also do physical exercise properly, such as doing breathing exercise training of abdominal breathing and lip reduction breathing, and other exercises, such as jogging, swimming, tai chi, yoga and other aerobic exercises to improve heart and lung function. Usually, you should also make sure that the indoor air is fresh and circulating, maintain a certain temperature and humidity, and do not go to the environment with dirty air and many people. If necessary, you can take Chinese medicine with lung-clearing effect, such as lung-clearing and phlegm-transforming granules, lantern leaf granules, honey-refined Chuanbei loquat paste, autumn pear paste, nourishing yin and clearing lung pill, yupingfeng granules, etc.