She lasted until midnight before Zhao Sishang's condition finally began to ease.
Perhaps she herself didn't understand why she was able to pull through. By the time she regained some sense of clarity and was able to fall into a deep sleep, the sheets around her had been soaked through with sweat, and they probably could wring out a patch of moisture.
The doctor was also drenched in sweat. During several times when Zhao Sishang's pain was so unbearable it seemed like she might not make it, her complexion turned as pale as death itself, utterly terrifying. Seeing that she was finally asleep, he, too, breathed a sigh of relief. He reported to the girl who had stayed up until midnight, seemingly tireless, "Her condition has mostly stabilized. It'll get better after the first time she gets through it, but we can't say it won't happen again. The patient's willpower isn't very strong, and she will need someone to watch over her until it's confirmed she has detoxed."