Earlier quoted context omitted.
What I meant by medicine is that it cannot help person to get well. Drinking medicine should be maintained, or else the patient will hear again the voice that is only in his mind. Not like flu or fever, a patient can get well if he drinks the prescribed medicine.
Ahh, I see. "There is no cure" is the phrase we would generally use. And, yes, unfortunately, there is no cure. We don't remotely understand what causes it, much less how to fix it. :(
Yah, thanks for giving me the exact words, no cure. I think the cure only rely on the person's will power to be well.