I'm Going To Have Back Surgery Around The First Week

I'm going to have back surgery around the first week of December. The Surgeon says that I have to get the nicotine out of my system before he will operate, and I understand that. I have never heard of that before but he has to put rods and screws and said that he has to curve my back. I know the healing process is quicker without nicotine, so how long does it take to get it out of me? Is there anything I can eat or drink to speed up the process of getting the nicotine out?