C591 Deep concealment and name

Xu Lang then took out a few more Bovine Hair Needle s and lightly pierced them into the other acupoints on the old lady's body. Xu Lang then pulled out the needles that were on the old lady's body again.

The needles could help the old lady lessen the pain and recover her blood pressure. But why did Xu Lang pull it out again? While everyone was still in shock