go buy the the air supports from shoppers specifically for plantars, they are around $22, get the ones with the plastic arch support, the foam ones suck. the ones i have are airplus for plantars, have had them in my work shoes for a year and they haven't worn down at all. when you get them only wear them for a couple of hours at a time to start with, otherwise your feet will hurt more
there are no wading boots or shoes that will help that, I 've had to deal with that before, the pain lasted about 6 months. you need to walk on soft surfaces, and stretch it out best you can, push on a wall, roll a tennis ball under your foot. it will take a while for the pain to go away