C2151 Zhang Cheng

"This, I can't." Lin Long immediately shook his head.

"It can't be. Aren't they effective against cold qi? Why can't they?" Miao Feng couldn't help but ask.

"Because these medicines require a certain amount of time. Think about it, when you're dealing with that Elder He, would he give you time to catch your breath?" Lin Long asked.

"This …" Miao Feng was instantly at a loss for words.

"Then..