"What medicine?" Master Li raised an eyebrow, his expression becoming grave.
Gu Youyou took out a bottle of medicine, and immediately someone took it from her hand and handed it to Master Li on the high platform.
Master Li did not understand medical skills, he simply glanced at it briefly, then set it aside.
"What illness does he have? Why must he use the medicine you use?"
"Replying to Master, since I was young, my health has been poor, and I have always relied on medicine to sustain my life. This medicine was developed by me over many years, specifically to treat my illness. And that person you mentioned, by a stroke of luck, has the same illness as I do, so he only buys medicine from me."
Master Li immediately seized the key point, asking somewhat excitedly, "Do you mean to say that he will have to buy medicine from you again?"
Gu Youyou candidly said, "There's no need for that, I gave him the prescription."