Each craving eventually passed. The technique I used was to demonize a lit cigarette in my mind when I got cravings. I'd "act" afraid of it in my imagination, causing a slight jump in adrenaline. Then I'd get a drink of water or chew gum or yell at someone. Don't be fooled, one drag is usually enough to make you a smoker again, which means starting all over again (someday).
I forgot to mention that your friend and his family is in my prayers.
Thanks, and I'm sure Dean welcomes your prayers.