Was wonderding if repairs can be made to the under arm of a wool Prince Charlie jacket.

I have a very nice wool jacket and the only wear it's begining to show is in the under arms from wool rubbing on wool. No hole has begun (yet) but if it does the jacket is so nice I'd hate to have to toss it.

Anyone been in a similar situation? Also there is a small tear to one of the inside of the pockets along the lining. I figured this could be repaired easily?

Thanks for any insight.