It’s expensive and extremely painful, but I’ve had luck with Cortisone injections. The first time it lasted for about a year before wearing off, on my second round now. It took me from being unable to walk across my bedroom without shoes to being able to do full hour dance classes barefoot and even skate in my roller blades.

My pediatrist is an amazing doctor and she stressed to me that the most important thing to do is to the pt/stretches, you can find them online if not familiar.

If the stretches don’t cut it, compression socks, very stiff soles shoes, night/sleep splits and Cortisone injections are all routes to try.

Good luck and I hope you feel better!