The Four Symbols Needle Technique was extremely exhausting on True Qi, and Ding Fan could only treat up to two people a day. Moreover, he couldn't treat them consecutively, as using True Qi with such high intensity continuously also had its significant drawbacks. To treat all these dozens of people from Changsheng, it would take at least a few months.
Now the most pressing issue was that Ding Fan didn't have that much time; he still needed to accompany Cheng Bufan to find Jin Minchong. Ding Fan had been out for so long that if he didn't return soon, it would definitely make Cheng Bufan worry.
Therefore, Ding Fan decided to impart a cultivation technique to the people of Changsheng to detoxify themselves.
Ding Fan could teach a self-detoxification method, and Bian Zixuan and Uncle Bian Wu were very pleased, as the obsidian poisoning that had plagued the people of Changsheng for years finally had a solution.
