All hypnosis is really self-hypnosis.
While in hypnosis, you are fully awake and hear everything that is told to you by the hypnotherapist. It is physically and mentally impossible to indefinitely remain in hypnosis. A hypnotized patient will not violate his or her ethical standards. You may freely exit hypnosis simply by willing it to happen. Hypnotherapy has over 300 applications, and it is the oldest of all therapies.