Leviticus 13:32-34

32The priest must then examine the infection on the seventh day, and if the scall has not spread, there is no reddish yellow hair in it, and the scall does not appear to be deeper than the skin,

33then the individual is to shave himself, but he must not shave the area affected by the scall, and the priest is to quarantine the person with the scall for another seven days.

34The priest must then examine the scall on the seventh day, and if the scall has not spread on the skin and it does not appear to be deeper than the skin, then the priest is to pronounce him clean. So he is to wash his clothes and be clean.