I have started using bridge and in doing so reorganized my keyword list a number of times, without being aware that if all the files with that keyword aren't selected, you end up with duplicate keywords (in italics).
I have tried removing these italicized keywords in multiple ways while selecting all the photos. Making them persisting and deleting, clicking the checkbox so no files have the keyword and then deleting. The only way that works is going through each file one at a time and removing the keywords. Is there no way I can completely start again, wiping all keyword data from the photos and from Bridge or do I have to work through each photo one at a time?