For stopping smoking it is usually one session lasting about 90 minutes. For anything else it can range from 1 to 10 sessions. The hypnotherapist can see two different people who have the same problem. One person might need two sessions and the other might need four sessions. The reason for this is that we are all unique and react differently.
Hypnosis is the state that a person experiences.
Hypnotherapy is using that state for beneficial purposes. When we are in hypnosis we are more relaxed, physically and mentally. When this occurs our mind operates more efficiently and effectively. An example of this is when you try and remember someone s name. The difference here is that you were putting your mind under tension trying to force it to remember.