Using talisman water to cure diseases is a trick often employed by those Taoist nuns and witches; it fails to heal and sometimes drags small ailments into big ones.
Qin Liuxi detected the disdain in his words and sneered, "My talismans are expensive, more costly than herbs."
"...A truly effective medicine talisman must utilize spiritual power and require full concentration; it must be completed in one stroke without interruption," the Little Ginseng explained on behalf of Qin Liuxi, "Therefore, a medicine charm that can genuinely turn into water not only contains medicine but also Spiritual Energy and scripture, which upon drinking can expel evil and heal diseases. That's real talisman water, unlike those fake ones outside."
