Review for Plantar Fasciitis

Started after a marathon it's been 12 months since initial setback . Feels like a sharp rock in my shoe when I walk. Sometimes just fine then all of a sudden walking without a pain isn't possible .My running gait has changed because of the discomfort . Did a lot of rest, stretching, natural anti-inflammatories , Compression , Ice, Tp deep massage ect . No recovery yet .