@navid80, I don't know much about HBOT therapy for peripheral neuropathy but there is other information about the therapy on Mayo Clinic's website here:

— https://www.mayoclinic.org/tests-procedures/hyperbaric-oxygen-therapy/about/pac-20394380

@johnnyb talked about HBOT therapy in another discussion here but I don't know if he tried it due to the cost and not being covered by insurance or medicare:
-- https://connect.mayoclinic.org/discussion/living-with-neuropathy-welcome-to-the-group/?pg=47#comment-243265

I tried hyperbaric oxygen therapy for 40 days with no positive results. I have peripheral neuropathy that is very aggressive. Muscle loss, no balance, dropped feet.