The Deeps

It took me less than an hour to make a batch of healing pills for Wu Di, they weren't something great that could heal his plague, because that thing is a curse. The Emrodite Plague is a plant-based sickness, not even poison so I can't even absorb it. But I can easily identify and beware of it. 

It has a Yang Base, and works in slowly degrading one's body and at the same time sealing and locking their meridians. If a mortal is contracted with this disease, they won't even feel it, as it cannot penetrate into their meridian since mortal meridians aren't activated.

But for a cultivator, the plague goes into their meridians and nests there for a week, then it transforms into a contagious state, all while the person carrying the plague never even feels that they are sick.

But the moment the sickness starts propagating, pain, nausea, and even a sense of loss and disorientation are easy to occur.