In the case of severe chronic skin disease, the priest looked for two specific symptoms. Firstly, if there was a white swelling and the hair on the sore had turned white. Secondly, if the flesh on the sore was raw.
The term raw flesh
is literally living flesh,
that is, flesh that is seething or bleeding.
10 and the priest shall look. And if there is a white swelling in the skin that has turned the hair white, and there is raw flesh in the swelling,