Leviticus 13:19
and a white swelling or a reddish-white spot develops where the boil was, he must present himself to the priest.
Berean Standard Bible
And in the place of the boil there be a white rising, or a bright spot, white, and somewhat reddish, and it be shewed to the priest;
and in the place of the boil there is a white swelling, or a bright spot, reddish-white, then it shall be shown to the priest.