In the observation group , acupuncture was applied at Neiguan ( PC @ ) , Shuigou ( GV @ ) , Baihui ( GV @ ) , Sishencong ( EX-HN @ ) , Fengchi ( GB @ ) , Hegu ( LI @ ) , Sanyinjiao ( SP @ ) and Taichong ( LR @ ) , and hyperbaric oxygen treatment was given as well .