Mo Qing Fu’s injuries were serious.
To perform techniques forcefully without fully mastering and practicing beforehand often left permanent damages to one’s body. This was common in the cultivation community. Unless he consumed some specific and rare medicine, he will be forever stuck at a Qi level of eight and cannot advance any more in his lifetime.
Luckily, he was with Ling Xian.
For someone who inherited the "Encyclopedia of Dans", this disease wasn’t that hard to deal with. Though it would an exaggeration to say curing it was as easy as lifting a finger, as long as Ling Xian takes the time and makes the effort, the patient could be healed.
Ling Xian was planning to brew a Healing Dan.
This Dan was recorded in the "Encyclopedia of Dan" as a very magical Dan. Created by Liao Cang Qiong, it was not publicly known as to how it could be made. In other words, there were only two people in the world who knew how to brew this Dan. One was Liao Cang Qiong, the other, Ling Xian.