Leviticus 13:14-24

14 But if raw flesh ever appears on him, he shall be unclean;
15 the priest shall examine the raw flesh and pronounce him unclean. Raw flesh is unclean, for it is a leprous disease.
16 But if the raw flesh again turns white, he shall come to the priest;
17 the priest shall examine him, and if the disease has turned white, the priest shall pronounce the diseased person clean. He is clean.
18 When there is on the skin of one's body a boil that has healed,
19 and in the place of the boil there appears a white swelling or a reddish-white spot, it shall be shown to the priest.
20 The priest shall make an examination, and if it appears deeper than the skin and its hair has turned white, the priest shall pronounce him unclean; this is a leprous disease, broken out in the boil.
21 But if the priest examines it and the hair on it is not white, nor is it deeper than the skin but has abated, the priest shall confine him seven days.
22 If it spreads in the skin, the priest shall pronounce him unclean; it is diseased.
23 But if the spot remains in one place and does not spread, it is the scar of the boil; the priest shall pronounce him clean.
24 Or, when the body has a burn on the skin and the raw flesh of the burn becomes a spot, reddish-white or white,