Keep on cleansing because soon you won't want to smoke anymore. After you are clean, you feel so good that when you take a puff of a cigarette it makes you feel so bad that you will want to quit for good. And you will be able to. Because if you have the will power and strength to do the Master Cleanse, you can certainly have the strength to quit smoking for good. If you can't after the first MC, then do another. Keep cleansing untill you are so strong you can quit easily.