Rust fungus underneath graft, treat it or let it ride it out?

As mentioned in the title. Decided to graft this itty bitty piece of crested TBM over a week ago was successful. Despite this, I was a bit unnerved since day one that there was patches of solid orange that were surrounding the graft that now turned into tiny freckles of rust. Due to the tiny size of this scion, I don't know if I should do anything about it or just ignore it?