when you feel the first tingles of panic stop, take a deep breath in thru your nose and hold. let it out slowly thru your mouth. do that 3 times. then 3 in and out your nose. then 3 in your mouth and out your nose. and last 3 in and out of your mouth. long slow deep breaths. i do them standing with my arms out or laying down with my arms out. my arms are out to catch all the healing energy that surrounds us all.
a paper bag works too in a panic situation. slow breathing.
no shrink or med has done as much for me when it comes to panic attacks that these simple breaths do. i have ptsd. it even helps when that hits me.