Xiao Yi once again nodded his head. He lifted the one-foot-long needle in his hand and aimed it at the young man's Bai Hui point. He was about to place the needle.

"Hey, what are you doing? Are you going to pierce such a long needle into my son's head?" The patient's mother was completely frightened at the sight of Xiao Yi's posture. She rushed to her son like a hen protecting her son and shouted.