My recommendations would be:
Slow the rust....by cleaning out any sand/dirt/debris and simply coating it with oil or other
Stop the rust...by cleaning and converting it with a rust converter, then coating with oil or other
Remove the rust....by cutting it out and starting new
Being from the East Coast, I have sought the advice of a professional....my therapist says to embrace the rust as it is natural.
Others will likely provide more useful advice...
Mark - owner of a rust bucket!