Leviticus 13:55-56

13:55 And the priest shall look on the plague, after that it is washed: and, behold, [if] the plague have not changed his colour, and the plague be not spread; it [is] unclean; thou shalt burn it in the fire; it [is] fret inward, [whether] it [be] bare within or without. 13:56 And if the priest look, and, behold, the plague [be] somewhat dark after the washing of it; then he shall rend it out of the garment, or out of the skin, or out of the warp, or out of the woof:

Leviticus 14:48

14:48 And if the priest shall come in, and look [upon it], and, behold, the plague hath not spread in the house, after the house was plaistered: then the priest shall pronounce the house clean, because the plague is healed.