I know jupiter is new to this, so re-humidificationcould be the easiest way. But I for one love it when the fretboard shrinks back because I can get a new dressing on the ends, especially with factory necks that I don't particulartly like the style. Then, if I know I've flushed them off at that humidity level, they'll never come back again. But if you've never done it I don't know I'd tackle it on a UV. Although with the binding you're not talking about having to file the tangs, just the crowns, so it's a bit easier.
You take a flat fine file perpendicular across the edge, to nip off the offending metal. Then blend that into the rest of the fret's shape, with the file. Then either totally re-treat the fret ends, or at least de-burr them from the filing. For that you need a little file, preferrably with a safe edge, and/or a "sanding stick." With binding, if you finish off with 600 grit on a block, it will push metal filings into the binding and discolor it along the edge, unless you change paper almost every stroke. You can clean that and buff the whole fretboard edge at once, or just polish each fret end individually. That's pretty quick and basic, but if you take your time a newbie can get acceptable results. I'd still get a tutorial with pictures either online or in a book.