Actually, his idea was to make a small incision near a blood vessel and use other blood to lure the gu-insect out from within the body. This method was quite simple, though it required a significant amount of fresh blood.
"What kind of blood attracts them most effectively?" Chen Junlin asked again. There were some things Ye Chen found awkward to ask, but Chen Junlin did so with ease.
"Cow blood!" Yun Conghai replied subconsciously.
Chapter 189