As a general rule, yes. However, if you suffer with epilepsy or severe mental health issues, psychosis or certain types of personality disorders, please consult your GP about your hypnotherapy suitability.
In therapy, hypnosis usually involves the person experiencing a sense of deep relaxation with their attention focused inward and appropriate suggestions made by the therapist. These suggestions help people make positive changes within themselves. In a hypnotherapy session you are always in control and are not made to do anything. All hypnosis is self-hypnosis and a hypnotherapist just facilitates the client’s experience.