How long does it take for anxiety to go when listening to hypnosis?

It depends: It depends on the type of anxiety, and the kind of hypnosis you are listening to. Some kinds of anxiety may not respond well to hypnosis, or the person may feel uncomfortable with the idea of hypnosis -- resulting in an increase, rather than relief, of anxiety. Psychotic kinds of anxiety usually need individualized, professional treatment rather than listening to generic hypnosis recordings.

Anxiety: Anxiety is mostly produced by misperceiving situations and interactions. Try to focus on the facts as much as possible. Hypnosis can be helpful but i would recommend individual or group psychotherapy as the preferred treatment for anxiety. You can also try the anti anxiety app for daily support. My best.