In this chapter, we offer a comprehensive review of the literature regarding the use of hypnosis in the treatment of anxiety disorders. We will present evidence that supports its use or not as an adjunct treatment to CBT, also known as cognitive-behavioral hypnotherapy (CBH). We will also present evidence that does not justify its use as an independent treatment for anxiety disorders. Due to the amount of research on Post-Traumatic Stress Disorder (PTSD) and hypnosis, the reader will notice that a lot of the information will be related to PTSD. We will conclude by giving a simple guideline for practitioners interested in developing and using hypnosis as an adjunctive therapeutic tool in their practice.