Leviticus 13:44-46

44the man is diseased and is unclean. The priest shall pronounce him unclean because of the sore on his head. 45“Anyone with such a defiling disease must wear torn clothes, let their hair be unkempt, Or clothes, uncover their head cover the lower part of their face and cry out, ‘Unclean! Unclean!’

46As long as they have the disease they remain unclean. They must live alone; they must live outside the camp.