Leviticus 13:44-46

44he is a man with tza'arat He is unclean. The kohen should definitely pronounce him unclean—his plague-mark is on his head.

45“The one with tza'arat who has the plague-mark shall wear torn clothes, the hair of his head is to hang loose, he is to cover his upper lip and cry, ‘Unclean! Unclean!’

46All the days during which the plague is on him he will be unclean. He is unclean. He is to dwell alone. Outside of the camp will be his dwelling.