I developed plantar fasciitis working in a nursing home as a CNA. I saw an orthopedic doc. He prescribed the exercises, a night splint, the frozen water in a bottle trick (to roll on the floor with your foot) and the cortisone injections. His recommendation was Birkenstocks, and an entire page of athletic shoes. I bought the Brooks Addictions. They have helped. I tried the Birkenstocks, but did not care much for them.
I bought two pair of Z-Coils. These are the best things for getting through a long shift. While wearing them, I do not have ANY pain. The coils suck up all the shock from walking. But putting on another pair of shoes at the end of the shift, the pain is still there. See, it never went away, but with the Z-Coils there was no impact.
I have been doing the exercises, and using a splint. The ice helps as well. As far as the cortisone injections, the first time I had them done, my family doctor did it. It hurt like hell. When I saw the orthopod, he wanted to do the same injections, and I wanted no part of it. He said it would not hurt at all. He used a spray coolant on my heels which completely numbed the bottom of my feet. He was absolutely correct. I never felt the injections. However, my cortisone wore off within a week.
The exercises, splints, and ice have helped me to where my pain is about a 2. I am still healing. The Z-Coils let me get through my clinicals. But the best thing I did was go see an orthopedic doc whose specialty is feet. I hope my comments helped and best of luck to you.
By the way, I am completing my LPN year and will have my license in August. Then it's on to my RN year in September. I can hardly wait!