Hi
I have plantar fasciitis myself for a few months now. My podiatrist prescribed me with Custom made orthotics which did not work at all. So I understood that treatment efficiency is very individual. If something works for one it will not always work for the other.
If you are still under a lot of pain you should be stretching very easy. I have found Taping very useful. Taping helps to relieve the pain, keeps your foot from getting injured again and helps you get through your daily routine and exercises. There is a good web-page explaining the subject in this informative website-
http://www.plantar-fasciitis-elrofeet.com/plantar_fasciitis_taping.html
Take care & Good luck