Hello again!

I just bought a brand new Ralf Aust 7/8 this last couple of months and it is starting to dull a little bit and could use a sharpening. When I was inspecting my blade I noticed that I have rust now on the tang of my blade and what looks like it might be under my horn scales! Needless to say I am not very happy with self and letting that Happen. I try to keep the water just on the blade when shaving but obviously that isn't Happening. So how do I fix the problem? Can I fix it myself? Is it easy to do? When I send my aust out to get honed will the person Clean that rust up for me or do I have to specifically ask for them to do that? How much typically extra would it cost. Thanks guys in advance for all your answers!

Greg