SFN and Heel pain

Hello everyone. I’ve had neuropathy pain for about 3 years now, and recently had a skin punch biopsy to confirm SFN. For the past month or so, I’ve had severe heel pain in my left foot in addition to my normal neuropathy pain.

I’m fairly sure it’s plantar fasciitis, which I’ve experienced before. It’s so much more painful now with the SFN—I’m in tears and limping by the time I get home from work most days. Pain medication doesn’t help at all.

I’ve tried some of the stretches for plantar fasciitis, but they are so painful that I’ve stopped. They also trigger horrible muscle spasms/muscle cramps in my feet and calves. I’m about at my wits end because all the normal plantar fasciitis treatments are so painful for me, I can’t bear them.

Anyone have experience with this? I’d love suggestions