Piercing the skin is easy, but doing so with a uniform progressive speed within three minutes requires decades of skill.
After stimulating the patient's first needle sensation, Xu Chunliang continued to advance the filiform needle, penetrating the ligament and exploring the ulnar nerve palmar branch to stimulate the second needle sensation, maintaining the needle for another three minutes.
Although others could not discern the subtlety of Xu Chunliang's needling, they could see Wang Zeqiang's response. The previously restless Wang Zeqiang was gradually calming down, and the second needle sensation spread throughout the entire palm region of the patient.
Three minutes later, Xu Chunliang continued to deepen the filiform needle, inserting it about one centimeter, where the needle tip sensed a texture like hard rubber, reaching the ulnar collateral ligament, triggering the third needle sensation.
