Nicotine patches do help to give relief from Nicotine withdrawal and it is one of the most commonly used forms of NRT (Nicotine Replacement Therapy). These patches work by supplying steady stream of nicotine in the body of the user without providing any dangerous effects of inhaling smoke from the tobacco. Though the nicotine amount send through these patches inside the body is much less as compared to smoking but it proves to be enough for keeping a person away the cravings of nicotine. Nicotine causes dopamine in the body which makes a person feel good. These patches also help to give ease from various physical as well as psychological symptoms of nicotine withdrawal. Different types of patches are available in the market which is used depending upon the way of smoking followed by a person. These patches are generally worn for 16 hours continuously during which the nicotine is absorbed through the skin and reaches the bloodstream. The effects of nicotine loss in the body are minimized with the use of these patches and they also give relief from headache, racing heartbeats and sleep problems. During the first four weeks of having no cigarette, a strong dose of these patches are used and then they are replaced with the lighter ones over a period of time.