'Eruption' in the Bible

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.

then the priest shall look, and if the bright spots on the skin of their bodies is a dull white, it is [only] a rash that has broken out on the skin; he is clean.

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