It happened three years ago, in October.  I had to suffer from hives and face edema for the first time.  My face had swollen so much then (my face was blowing up like a balloon); but instead of running to an emergency room and take steroids (i have become quite allergic to Benadryl), I did otherwise.  Here are some of the three things I did at Yoga Brisbane to self-heal: by increasing blood circulation through the Sharsasana or the head pose twice every day, for 10 minutes each; and two, by doing Asana every day. My face, after doing those Yoga routines has, quite astonishingly, regained its normal shape after a two-week period.