Leviticus 13:16-21

¹⁶But if the raw flesh turns white again, then the person must go to the priest.

¹⁷The priest will examine him to see if the flesh has turned white. If it has then the priest will pronounce that person to be clean.

¹⁸When a person has a boil on the skin and it has healed,

¹⁹and in place of the boil there is white swelling or a bright spot, reddish-white, then it must be shown to the priest.

²⁰The priest will examine it to see if it appears deeper under the skin, and if the hair there has turned white. If so, then the priest must pronounce him unclean. It is an infectious disease, if it has developed in the place where the boil was.

²¹But if the priest examines it and sees that there is no white hair in it, and that it is not under the skin but has faded, then the priest must isolate him for seven days.