NRT gum can be used during any period of temporary abstinence from smoking. On long-haul flight or in non-smoking restaurant, for example. It is suitable for times were you must remain in a non-smoking area or any environment where you must refrain from smoking. NRT can help smokers take a "cigarette holiday" where they use NRT instead of smoking in order to reduce the total of cigarettes that they smoke. Those who use this approach should do so with an eye to gradually extending the duration of these cigarette-free periods. There is always the risk that this strategy may reduce the smokers' motivation to quit smoking completely. So you should consult your doctor or pharmacist if you are find that you are unable to reduce the amount that you are smoking.