Some experts in hypnosis can use the techniques of hypnosis to hypnotize someone instantly through conversation. This is called covert hypnosis. For more information on covert hypnosis and other forms of hypnosis visit hypnotizepro.com
Well, hypnosis is 'supposed' to be able to do almost anything to the human body, if an expert hypnosis performs hypnosis on you. Though it is highly 'likely' to reduce your alcohal desires, you should try patches and pills before hypnosis.