@lgrec, I felt like I had nails in my heels and hobbled around for months. I faithfully did all of the recommended home treatments with no relief. I changed to Birkenstocks and Mephistos which did help to some degree. What REALLY worked for me was a procedure called Radio Frequency Ablation. It's a minimally invasive procedure which barely impacted my life. I think I had to wear a boot for a week. I'm fuzzy on the details now because the procedure was done in 2008 at an outpatient clinic by my podiatrist. I've never had a hint of pain since.

From Google:

"Radiofrequency ablation (RFA) is a minimally invasive procedure that can be used to treat plantar fasciitis. RFA uses high-frequency radio waves to heat the sensory nerves in the heel that cause pain, which denervates the nerves and prevents them from sending pain signals. This procedure can be an option if other treatments, such as physical therapy, injections, or custom orthotics, have not provided adequate pain relief. RFA can also be used to treat other causes of heel pain, including nerve entrapment, calcaneal bursitis, and scars from open plantar fascial releases."