'Scab' in the Bible

“When a man has a swelling on the skin of his body, a scab, or a bright spot, and it becomes the infection of leprosy on the skin of his body, then he shall be brought to Aaron the priest, or to one of his sons the priests.

The priest shall examine him again on the seventh day, and if the infection has a more normal color and the spot has not spread on the skin, the priest shall pronounce him clean; it is only a scab; and he shall wash his clothes and be clean.

“But if the scab spreads farther on the skin after he has shown himself to the priest for his [ceremonial] cleansing, he shall show himself to the priest again.

The priest shall look, and if the scab has spread on the skin, then he shall pronounce him unclean; it is leprosy.

and for a swelling, and for a scab, and for a bright spot on the skin—

Therefore the Lord will afflict the crown of the head of the daughters of Zion with scabs [making them bald],And the Lord will expose their foreheads (send them into captivity).”