Although rheumatoid arthritis is one of the five most difficult diseases to treat, and conventional means can't cure it, the Qiao family is rich and controls the medicinal material market in Jianghuai. With Doctor Jiang Qi's medical skills, Qiao Yuanting's condition, although incurable, should not have deteriorated to this state by the age of fifty.
This was the doubt that Su Chengyu had from the beginning.
After arriving at the Qiao family, Su Chengyu observed secretly and found that Qiao Yuanfeng and Jiang Qi were exchanging glances. Although others hadn't noticed, he couldn't conceal it from Su Chengyu's Divine Sense. This made him even more suspicious that Jiang Qi had tampered with the treatment.