breathing, relaxation music, bath, crumple paper up and throw it in a can a foot or so away from you (great distraction because you are concentrating on making a basket instead of the problem that sent you into a panic) Books like the courage to heal by laura davis, and The PTSD workbook and The Relaxation and Stress Reduction Workbook and also the workbook Mind over Mood has great sections for handling panic and situations that cause panic attacks.