A choice between that medicine, or submitting himself to a Foreigner's powers. For several moments, Yunxu struggled with the decision. In the end, however -- very similar to Raine's reasoning -- he decided the personal satisfaction of thwarting said nameless instructions trumped his natural suspicion of the Foreigners.

Besides, there could very well be something less-than-savoury in whatever was used to create the medicine.

"Of course." Yunxu unbuttoned and pulled off the silken shirt he was wearing, and draped it neatly over the back of a chair. The angry red wound looked like someone had slashed him across the chest with a dagger or a sword, which was, in fact, exactly what happened. The wound bit deeper on the left side of his body, reaching almost to his side, and while it looked like it had been tended to -- the Snakes' healers weren't incompetent -- it also looked like it had been just beyond the abilities of whoever looked at it, and it wasn't healing well.