Hypnotherapy is supported by scientific research and has demonstrated effectiveness for various conditions and purposes. It is considered safe and non-invasive; however, there are some risks and contradictions to be aware of.

Individuals with certain psychological conditions, such as schizophrenia or other psychotic disorders, may not be suitable candidates for hypnotherapy. Additionally, while rare, some individuals may experience mild and temporary physical side effects during hypnosis, such as dizziness, nausea, or headaches.

It's important to note that while hypnosis can be highly effective for many individuals, it may not produce the desired results for everyone. Individual susceptibility and motivation are significant factors that can influence the effectiveness of hypnotherapy.