Ankle pain one week before the marathon

I've had this nagging pain in my ankle that I couldn't ignore on my last run. The actual site of pain is slightly below my ankle and (sorry I'm not good with anatomy) it is in the little bone that juts out mid-inner foot.

My problem? I have my first marathon this Sunday.

I may be able to have a trainer look at it, but I don't want my podiatrist to look at it because he'll tell me not to run.

I'm not sure whether I should run through it so I can get used to ignoring it on Sunday or rest/ice/baby it all week until I have to run on Sunday. Any suggestions would be helpful to me.