Leviticus 13:42-46

42But if he has a reddish-white sore on his bald head or forehead, it is a defiling disease breaking out on his head or forehead. 43The priest is to examine him, and if the swollen sore on his head or forehead is reddish-white like a defiling skin disease,

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.