Quack Doctors Don't Heal Themselves

Duan Jinglan is a quack. He knew this clearly, but he worked tirelessly to treat people, because he was a medical practitioner, and if he couldn't heal well, he still had to practice. He is praised for saving lives and healing the wounded. He can cure the healthy ones until they become sick, cure the sick ones until they are about to be buried in the ground, and pull out the ones who are about to be buried in the ground and torture them again. Hey! Then the patients came to our door...