Leviticus 13:43-46

13:43 The priest is to examine it, and if the swelling of the infection is reddish white in the back or front bald area like the appearance of a disease on the skin of the body, 13:44 he is a diseased man. He is unclean. The priest must surely pronounce him unclean because of his infection on his head.

The Life of the Person with Skin Disease

13:45 “As for the diseased person who has the infection, his clothes must be torn, the hair of his head must be unbound, he must cover his mustache, and he must call out ‘Unclean! Unclean!’ 13:46 The whole time he has the infection he will be continually unclean. He must live in isolation, and his place of residence must be outside the camp.