Quitting smoking all at once is good for the body, cigarettes contain smoke tar, which is harmful to the body, especially the lungs. However, if you quit smoking at one time, you may not get used to it and it is more difficult to quit. Therefore, you can cooperate with medication in the clinic, such as using bupropion, nicotine replacement therapy or colistin under the guidance of a doctor, etc. Among them, the more commonly used one is the nicotine replacement method because smokers are mainly dependent on nicotine, and it can help the patients to quit the addiction to cigarettes through the nicotine replacement method, for example, the use of nicotine patches, nicotine nasal sprays or sublingual tablets. The combination of substitution therapy and the smoker’s psychological awareness of the need to quit can usually lead to good results. In addition, people who have difficulty quitting can also choose to use physical therapy or acupuncture, which can play a very good role in quitting smoking.