Quitting smoking is not easy, given that you have to deal with physical and psychological withdrawal symptoms. Nicotinell patches can help you deal with physical withdrawals that arise owing to the absence of nicotine in your system. These patches fall under the Nicotine Replacement Therapy (NRT) bracket, supplying your body with a steady dose of nicotine. You wear a nicotine patch on your skin and nicotine enters the bloodstream via this route. A number of studies show that turning to NRT can increase your chances of quitting. Nicotinell patches sell in three strengths, which include 21 mg, 14 mg, and 7 mg. Each patch works for 24 hours. If you smoke more than 20 cigarettes per day, you should use 21 mg patches. People who smoke less than 20 per day should use 14 mg patches. The 7 mg patches come into play only after you use the 14 mg patches and wish to wean off slowly. Turn to NRT and give yourself a better chance at quitting.