49 Heb “Or if/when.”
50 Heb “the living flesh returns and is turned/changed to white.” The Hebrew verb “returns” is שׁוּב (shuv), which often functions adverbially when combined with a second verb as it is here (cf. “and is turned”) and, in such cases, is usually rendered “again” (see, e.g., §120.g). Another suggestion is that here שׁוּב means “to recede” (cf., e.g., 2 Kgs 20:9), so one could translate “the raw flesh recedes and turns white.” This would mean that the new “white” skin “has grown over” the raw flesh (B. A. Levine, Leviticus [], ).

In other versions

But if the raw flesh recovers and turns white again, then he shall come to the priest,

If the raw flesh changes and turns white, they must go to the priest.

But if the raw flesh changes and turns white, he is to go to the priest.

However, if the open sores heal and turn white like the rest of the skin, the person must return to the priest

Or, when the raw flesh returns and it has changed to white, then he shall come to the priest,

Or if the raw flesh turn again, and be changed unto white, he shall come unto the priest;

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