I developed pain in the arch of my left foot this week. The odd thing is that I was on vacation so I only did some fairly short, easy runs every other day (same surface, concrete, but less strain than a typical week). I'm a forefoot striker and a neutral pronator (from self test). I was wearing a 3 week old pair of Asics Gel-Nimbus shoes which should be a good match for me.

Are there some exercises or stretches that would help? Or just the typical ice and rest?