Because there is no statutory regulation of the profession, there's always the risk of running into somebody who lacks the right training.
Hypnotherapy is not recommended for people with post-traumatic stress, epilepsy, and serious psychological disorders (such as split personality, borderline psychosis, and depression).
The process takes work. Many patients undergo hypnotherapy in the hopes of finding a miracle cure and get disappointed when the therapist mentions diet and exercise.
It may not work for everybody. "Some clients will not find their remedy or solution in Hypnotherapy for all kinds of reasons," says Vaknin. "Most will, but some will not."
Other Uses for Hypnosis
Smoking cessation and other addictions
Pain control, including childbirth, fibromyalgia, burn injuries, and post-surgery
Nausea and vomiting during pregnancy
Insomnia
Panic and anxiety disorders (but not as a substitute for psychiatric or psychological treatment)