
I read the novel, it would be take a long time before she can treat his injury. 9th Prince injury is quite severe, it wasn't minor surgery cases you can treat anytime, that's why Feng Yu heng need to turn her Baicotang into hospital first before she can get the surgery done, she also needs an assistant and proper equipment, I have no idea if her private pharmacies have all the equipment needed for the surgery.

Lol lol lol well I read the whooole novel actually and nah she didn't really need that much she did heal his legs and all on her own but he refused to walk until the end of chapter 392 when be makes a badass scene and leave his wheelchair and he did actually tell Heng heng that since people seem to enjoy seing him crippled that he'll let them enjoy it a little longer cuz when he does get up they will really regret it ROFL Tian Ming is so badass I swear
Even after looking at the raws until almost ch. 150 MC still doesn't heal the 9th prince (⊙…⊙ )
She probably needs an assisstant for the surgery or what? Poor prince needs to probs wait until she finally gets her shops all done and people more educated for it?
I hope at least it won't be close to the end until he can walk again ╥﹏╥