Leviticus 13:14-16 New Living Translation (NLT)

14. But if any open sores appear, the infected person will be pronounced ceremonially unclean.

15. The priest must make this pronouncement as soon as he sees an open sore, since open sores indicate the presence of a skin disease.

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

Leviticus 13