Board Thread:Off Topic/@comment-25396609-20190908002326/@comment-25396609-20191222191359

What I'm saying is to pick exactly one of those categories, and have the Semblance only work on that grouping.

Personally I would suggest either infectious diseases or poisons/toxins; since they aren't quite as deeply ingrained into the body as physiological diseases.

I'll repeat that you should cut out the middle man (turning water into a potion of cure disease) and have it be an effect directly applied by the user in a similar fashion to Jaune's aura amplification.

Duration required to heal should be correlated to the severity of the illness rather than the type; which also removes the need for "can only use it X number of times per person".