A podiatrist in Scottsdale AZ did the biopsy. This was after he misdiagnosed me with athlete's foot then circulation problems. Sold me a bunch or foot soaking products and creams that only "he" makes. I spent about $200.00 on them to no avail. As soon as the biopsy came back (not knowing I had already researched the condition thoroughly), and I was nearly in tears, he said "no problem" we have a treatment for this. It's called Exosome injections and I can do your first one right away. He continues..."it's $2,500.00/treatment and insurance does not cover it". I already knew this and I knew that studies have only been done on mice, not humans...we I guess they have done some research and these Exosomes look promising,.. but not real double blind clinical trials. It will not be long and every pain management clinic (we have one on most EVERY corner in Phoenix) will be doing these treatments...big money in it. Chiropractors are also in on the game. Oh, and the previous podiatrist also misdiagnosed me twice. First was Morton's Neuroma and the second was Planter's Fasciitis. What is the treatment for B12 deficiency and how does get it? Pam