Wei Yuan had a hard time escaping from the infirmary of Xuanming Palace. The Daoist medic had applied too much medicinal solution when cleaning the wound, necessitating another dose of the nourishing powder, and then there was a bit too much of that, requiring a further sprinkling of the solution. If Wei Yuan's physical body hadn't been so robust, the Daoist's fumbling would have turned his wounds severe long ago.
In his flurry, the Daoist accidentally revealed that he was only eighteen years old, actually hadn't yet completed his medical training, and lacked innate talent in the field, never having been able to practice independently. His presence in the palace was purely due to a shortage of hands; the Xin-level infirmary had been short-staffed, so he was assigned there.