“If anyone has a swelling or a rash or discolored skin that might develop into a serious skin disease, that person must be brought to Aaron the priest or to one of his sons.
The priest will examine the affected area of the skin. If the hair in the affected area has turned white and the problem appears to be more than skin-deep, it is a serious skin disease, and the priest who examines it must pronounce the person ceremonially unclean.
But if the rash continues to spread after the person has been examined by the priest and has been pronounced clean, the infected person must return to be examined again.
“Command the people of Israel to remove from the camp anyone who has a skin disease or a discharge, or who has become ceremonially unclean by touching a dead person.