Leviticus 13:5-6
13:5 The priest must then examine it on the seventh day, and if, as far as he can see, the infection has stayed the same and has not spread on the skin, then the priest is to quarantine the person for another seven days.
13:6 The priest must then examine it again on the seventh day, and if the infection has faded and has not spread on the skin, then the priest is to pronounce the person clean. It is a scab, so he must wash his clothes and be clean.
Leviticus 13:28
13:28 But if the bright spot stays in its place, has not spread on the skin, and it has faded, then it is the swelling of the burn, so the priest is to pronounce him clean, because it is the scar of the burn.
Leviticus 13:34
13:34 The priest must then examine the scall on the seventh day, and if the scall has not spread on the skin and it does not appear to be deeper than the skin, then the priest is to pronounce him clean. So he is to wash his clothes and be clean.
Leviticus 13:51
13:51 He must then examine the infection on the seventh day. If the infection has spread in the garment, or in the warp, or in the woof, or in the leather – whatever the article into which the leather was made – the infection is a malignant disease. It is unclean.
Leviticus 13:55
13:55 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.