Qu-chi ( LI 11 ) , Hegu ( LI 4 ) , Dazhui ( GV 14 ) , Shaoshang ( LU 11 ) and Erjian ( EX 11 ) were selected in the acupuncture bloodletting group , intravenous injection of penicillin sodium was applied in the penicillin group and acupuncture bloodletting combined with penicillin was applied in the comprehensive group .