Leviticus 13:12-13

13:12 If, however, the disease breaks out on the skin so that the disease covers all the skin of the person with the infection from his head to his feet, as far as the priest can see, 13:13 the priest must then examine it, and if the disease covers his whole body, he is to pronounce the person with the infection clean. He has turned all white, so he is clean.

Leviticus 13:16-17

13:16 If, however, the raw flesh once again turns white, then he must come to the priest. 13:17 The priest will then examine it, and if the infection has turned white, the priest is to pronounce the person with the infection clean – he is clean.