A 48-year-old woman with severe, chronic obstructive pulmonary disease was instructed in the use of peak-flow feedback and hypnotically induced relaxation to reduce the intensity of dyspnea during periods of anxiety. Peak-flow information provided physiologic feedback as well as a safety feature in the event that subjective improvement did not correspond with objective physiologic improvement. I used a progressive relaxation method for inducing hypnosis and gave her suggestions of well-being and muscle relaxation. Peak-flow feedback was useful in enhancing the patient's confidence that hypnotic relaxation was successful in improving respiratory function.