Outer Arch Pain

Hello all!

I ran a marathon this past August and ever since then, I’ve had a sort of lingering throbbing pain in my left foot arch (on the outside/left side of the foot, not the main arch). I seem to have tried everything; I have relatively new shoes (a pair for casual walking and specifically for running), both equipped with shoe inserts recommended by a foot scan. I have drastically decreased the intensity and number of workouts I do to try to heal up, and spend a decent amount of time icing/resting/compressing/etc. my foot.

Without letting myself think the absolute worst, I’m almost at a loss as to how to heal up. Even extensive searches online don’t yield encouraging results - I can rarely find situations where the pain is where I’m feeling it.

Any insight/recommendations would be appreciated! Happy Holidays, all!

Thanks!