Leviticus 13:28

And if the bright spot stay in his place, [and] spread not in
the skin
If, after being shut up, seven days, it appears that the spot is no larger than, when it was first viewed, but is as it was, and not at all increased: but it [be] somewhat dark;
either not so bright as it was, or more contracted: it [is] a rising of the burning;
or a swelling of it, a swelling which sprung from it, and nothing else: the priest shall pronounce him clean;
from the leprosy, and so set him at liberty to go where he will, and dwell and converse with men as usual: for it [is] an inflammation of the burning;
or an inflammation or blister occasioned by the burning, and no leprosy.