Quote Originally Posted by Urlea
What are you wearing for you runs?
I am so not worthy to suggest anything to you! But here goes anyway.

I used to always get awful blisters on my arches on any run longer than two miles. What's worked for me is SmartWool socks, lube like BlisterBlock or BodyGlide, Compeed blister pads when I already have a hot spot or blister, and larger shoes. That last especially - I would think that the longer you run, the more your feet swell.