I had to go to a podiatrist recently because I was developing a lump near the ball of my foot. It was uncomfortable to walk about the house in bare feet. And I was starting to feel it towards the end of long runs.
In addition to needing new shoes, I was told that I needed some with more cushioning in the forefoot, and that I would also need switch to non-weight bearing cardio (cycling or swimming) for a while to give my foot a chance to recover. Just after seeing the podiatrist I got a bad cold, so was unable to train. That gave my foot a bit of a break, and this weekend I felt well enough to venture into town to get some new shoes.
I've worn Brooks runners for a few years now, but after trying on some Brooks and some Asics at Athletes Foot, I decided on a pair of Asics Gel Nimbus. My first reaction on trying them on was that it was like wearing a pair of slippers - very soft!