Hypnotherapy describes the use of hypnosis for therapy. The properties of the hypnotic trance are used to bring about changes in unconscious processes. During hypnotherapy, direct communication with the subconscious is used to stimulate the desired changes. This is how sustainable results are achieved.
Hypnotherapy can be used for everything that is controlled by the unconscious. And this includes almost everything.
The so-called clinical hypnosis also falls under the field of hypnotherapy.