I don't know if that would help, but i had real bad pain in each of the base joints of my large toes, it was so bad that i hardly could walk anymore. Everything know to medicine at that time (about 30 years or so ago) was tried, but noting took he pin away. The final solution was to fuse those joints (it is a relative simple surgery), and I am now pain free for 30 years, and the fused joints do not negatively influence my walking a bit!
Again, I don't know if that would be a solution for your case.
I wish you all the best!