Evaluation of the Effectiveness of a Nursing Intervention Program in Reducing Anxiety in Users Who Perform Scheduled Sessions in the Hyperbaric Chamber

The objective of this experimental study is to determine if the application of a nursing educational intervention reduces the anxiety of patients who are going to undergo treatment in the hyperbaric chamber. The researchers will compare the nursing educational intervention with the usual practice that is currently carried out in the unit for patients who are going to begin treatment in the hyperbaric chamber. Participants will: * Receive explanatory information through a camera triptych when the treatment is indicated. * Come half an hour before the first session to receive a nursing educational intervention, with audiovisual support, on the operation of the camera.