I am a runner and I have got Plantar fasciitis for about a year. At the beginning I could not step on my feet in the morning and today I am almost over it.
First of all you should listen to your body. If some kind of treatment makes you feel better then keep on doing it. There are many kinds of treatment for plantar fasciitis and you should follow the ones that make you feel good.
I took a complete rest from running for 3 weeks and then slowly returned to run. Today I am still not running as much as I used to but I am getting closer. Instead I started swimming which is a great cardio workout.
There is an interesting webpage about
running and plantar fasciitis in this link.