'Scab' in the Bible

“When a person has a swelling, scab, or spot on the skin of his body, and it becomes a disease on the skin of his body, he is to be brought to Aaron the priest or to one of his sons, the priests.

The priest will examine him again on the seventh day. If the infection has faded and has not spread on the skin, the priest is to pronounce him clean; it is a scab. The person is to wash his clothes and will become clean.

But if the scab spreads further on his skin after he has presented himself to the priest for his cleansing, he must present himself again to the priest.

The priest will examine him, and if the scab has spread on the skin, then the priest must pronounce him unclean; he has a skin disease.

and for a swelling, scab, or spot,