The gum may help relieve the cravings a bit but its not just the nicotine smokers crave. Its the habit of having an actual cigarette. For some people they have a cigarette in the morning with a cup of coffee and right after meals. Its about holding an actual cigarette in your hand too sometimes. I for me it was my five minutes of freedom to go outside while my kids were napping. Talk to a doctor especially for someone dealing with cancer.