There are only 4 possible theory causes of this. In my theory, the other one was natural disease called leprosy which is common in medieval period which is incurable at that time. The second was she have an autoimmune skin disease which when expose to sunlight it irritate her skin and which drastically worsen her condition. And third was she have a natural magic phenomena physical disease, ill summarize it in yin and yang term. my theory is that it's showing a yin imbalance like a magic inbalance where yin dominate her body which is bad and the solution is yang which is good, so the goal is to bring back yang energy to balance the yin helping her body healed or balanced. To put it simply she may have magic imbalance like cold dominate inside her so the solution is heat. The fourth one was she was cursed by magic
My theory with according to my statistic. It might be an natural magic disease or a magic imbalance inside her body. since leprosy cause nerve damage and loss of sensation but in previous chapter it does not show her any symptom of that. And fourth was mostly unlikely
So my statement of my theory was it could be second theory and third theory or could be not.
Hope this help you think and wonder what is her disease . Let me know guys what do you think what her disease is
My theory with according to my statistic. It might be an natural magic disease or a magic imbalance inside her body. since leprosy cause nerve damage and loss of sensation but in previous chapter it does not show her any symptom of that. And fourth was mostly unlikely
So my statement of my theory was it could be second theory and third theory or could be not.
Hope this help you think and wonder what is her disease . Let me know guys what do you think what her disease is






