Leviticus 13:32-34

32And on the seventh day the priest shall look at the infection, and if the scale has not spread and no yellowish hair has 1grown in it, and the appearance of the scale is no deeper than the skin,

33then he shall shave himself, but he shall not shave the scale; and the priest shall 2isolate the person with the scale for seven more days.

34Then on the seventh day the priest shall look at the scale, and if the scale has not spread in the skin and it appears to be no deeper than the skin, the priest shall pronounce him clean; and he shall wash his clothes and be clean.