Гэ Хун
"Jiuchong" "Nine Worms" broadly means "internal worms and parasites" in the "Baopuzi", for instance, (5), "Eulalia and male fern are vermifuges" [萑蘆貫衆之煞九蟲]. Ge Hong says that medicinal lacquer, instead of mercury, will eliminate the Nine Worms.