And there it is, the cure to all things only known to manhua authors. Why use tried and proven medicinal sciences when poking some needles will cure any ailment up to and including death.
In the novel it was explained that her spirit's lotus seeds strengthened your bones, purified your bonemarrow and renewed your tendons and flesh. I can't recall whether the acupuncture and whatnot was as a show but he sweats out the poison due to the seed she fed him. (She had consumed one first to see the effect and benefit from it.)
@Mangareader i know what the stuff does, its just a trope ive been finding in a few novels and it bug me. cant wait to see the rest of the utter bullshit she manages to pull off later though
Oh you know, casually outperform the disciple of their worlds greatest healer, and produce enough performance enhancing drugs medicine to supply an entire army. Infact she produces enough to make her a target worth waging war over.