I agree with Lexiecat. My husband has been sober for 22 years. He quit smoking about four years ago and is still on nicotine lozenges. If you look up some research studies, you'll find that researchers really can't prove that nicotine by itself is harmful. Tobacco is, which is why vaping is better, because there's no smoke. I've heard it's the chemicals in cigarettes that cause cancer. Regardless, we are powerless over another person's choices. I wish my husband would get off the nicotine, but what can I do about it? It doesn't seem to make him want to drink, and in the grand scheme of life, it seems a really small thing to spend energy worrying about. I'd have a much harder time if he was smoking, because I don't like the smell and I'm an oncology nurse!