I am strongly considering hyperbaric oxygen therapy as it has been suggested. I understand that it is potentially promising, but there have not been double blind studies. However, there are issues preventing double blind studies from occurring (funding, issues with placebo group in oxygen). I would love to hear if you had injury as a child, how many years from last concussion you received treatment and if you experienced any benefit in cognition or quality of life? Also, where you conducted your treatment. Additionally, if anyone has PCS in the New Orleans Area Dr. Harch is still recruiting participants for phase 3 of the study. Thanks so much