Can be symptoms caused by nicotine withdrawal have physical and psychological. In general, most people see a decrease in physical symptoms of nicotine withdrawal about 72 hours after last use of nicotine. And psychological symptoms can persist for many months thereafter, which can be considered in many cases for people beginning to use nicotine again.The physical symptoms of nicotine withdrawal in the first three days include cravings. These cravings tend to last from three to five minutes, so it is possible to get rid of passion. Distracting oneself from passion by engaging in some kind of activity for a few minutes and usually helps people get through craving.Those in nicotine withdrawal and irritable frequently, may have exceptionally "short fuse", and deal with the pressures you may find it difficult to very unusual. May people in the withdrawal of nicotine also noted difficulty in concentrating, extreme fatigue. In fact, when it can be possible, and fatigue be a friend rather than enemy. With the NAP is a great way to take the rest of the cravings. If possible, try to set a date to quit smoking and a few days of rest without interruption, as happened at the weekend.