Diseased Green Bird Wrasse (photos added)

[edikpok]

I have had this guy for about 3 years now. For the past 1.5 years it has been developing these weird looking "bubbles" around his nose. They are big, the color of the fish and don't affect the fish in any negative way. Kinda looked like cancer at the begining but not anymore. just like a bunch of sacs attached to his nose. Do you have an idea of what it can be or how to cure it? all other fish are completely fine....

Any help will be greatly appreciated.