At present, there is no exact time standard for the success of smoking cessation in the medical profession, how long it takes to quit smoking depends on the patient’s situation, generally if you quit smoking for three months without relapsing, then it can be said that smoking cessation is successful. However, it is still necessary to persist for a long time. In general, when you first start to quit smoking, you will experience some discomfort and withdrawal symptoms, such as dizziness, lack of concentration, irritability, bad mood and so on. These symptoms are usually most noticeable during the first week of quitting. After three weeks the withdrawal symptoms gradually ease or disappear. Generally, if you quit smoking for three months without relapsing, it can be said that you have succeeded in quitting smoking. The most important thing to do when quitting is to be careful not to relapse. You can choose other things to distract your attention, such as eating some nuts or drinking tea. Drink plenty of water to help relieve your discomfort. It is important to exercise appropriately to improve your physical fitness. Quitting smoking is a gradual process, must adhere to, and try to avoid contact with cigarettes during the period of quitting smoking.