The priest must then examine it after the infection has been washed out, and if the infection has not changed its appearance even though the infection has not spread, it is unclean. You must burn it up in the fire. It is a fungus, whether on the back side or front side of the article.

He will slaughter it on the north side of the altar before the Lord. Aaron’s sons the priests will sprinkle its blood against the altar on all sides.