We have a 2008 Black Pastel male from BHB that has a nose issue. He's had it for a few months now and he just shed a second time since the issue appeared.
Its a high pitch noise that sounds like a faint whistle.
We read that it might be a piece of shed skin stuck in his nose, that the next shed might fix it, but it's been two sheds now and it's still there!

Help please, does anyone have tips or have had similar issues?
He's otherwise perfectly healthy and has been breeding like a pro, so no R.I (trust me, I'm a pro in that area by now )

Any enlightenment is truly appreciated.