Bao Wenshan's injuries had accumulated over time and were difficult to reverse, not something that a few elixirs or regulating with the Yin Yang Self Scripture could completely heal.
Although Zhao Xing could revive Bao Wenshan's vitality, it was merely treating the symptoms rather than the root cause.
To thoroughly cure him would require gradual recuperation.
Unless Zhao Xing could comprehend "Start of Spring" to the fifth level of the Knowledge Realm and develop a high-order recovery method from it.
Or master the second layer of the Yin Yang Self Scripture, where the Five Elements Qi is like threads, allowing one to see the myriad strands of Five Elements Qi within the body, enabling deeper regulation.
If he could comprehend the third layer, mastering the "Five Elements Particles," he would be able to heal Bao Wenshan in an instant.
However, as of now, Zhao Xing couldn't achieve this.