19 and in the place where the boil was, a white swelling or reddish-white spot appears, they must present themselves to the priest.

Read Leviticus 13:19 Using Other Translations

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 comes a white swelling or a reddish-white spot, then it shall be shown to the priest.
but a white swelling or a reddish white spot develops in its place, that person must go to the priest to be examined.