Has anybody tried hyperbaric oxygen therapy for SPD?

by Sheila
(Columbus, OH)

My daughter has pretty severe auditory defensiveness. Loud sounds hurt and scare her and lead to meltdowns, and her own loudness is off putting to other children (not just from meltdowns; she's always loud). We have done listening therapy, which does help, but she seems to be worse lately--the worst she's been so far. She's already 7, and I want to get her the help she needs to do better in school (she also has problems with concentration and work completion) and not be shunned by other kids because of her behavior.

I have a friend who finished hyperbaric oxygen therapy for her 2 autistic children with amazing results, some of which I would like to see with my daughter (better eye contact and concentration) and I'm wondering if it would be beneficial to her even though she's not, technically, autistic.