In hypnotherapy session (using hypnosis as a therapy to resolve issues), there are basically 3 stages.
Stage 1 is a Pre-talk. By pre-talk, it means a talk before the actual hypnosis starts. During the pre-talk, the hypnotherapist will explain what is hypnosis and its benefits. And at the same time, finding out the issue faced by the person seeking the therapy and related history.
Stage 2 is the actual hypnosis session whereby the hypnotherapist will read from relevant script that specifically target to resolve the issue.
Stage 3 is post-hypnotic suggestion. It is suggestion given to the person after the hypnosis session.