HBOT and Etanercept injections have been discussed here on NT before. Both are expensive treatments. The need for 40 to 80 HBOT treatments makes it difficult to afford.

Unfortunately, Dr Tobinik's web site has very limited information other than he uses paraspinal Etanercept injections.

I've never heard of HBOT being used for PTSD. I'll have to look into that. The research does not address PTSD specifically. It looks at PTSD symptoms that are concurrent with mTBI symptoms. There has long been an understanding that PTSD and mTBI symptoms have many overlaps.

Reading the research reports, it appears that those more likely to see improvements from HBOT are those with the highest level of symptoms. It appears those that are most non-functional are likely to regain some functions.

The stem cell treatments are not even available in the US. A past NT participant had stem cell therapy in China with minimal improvement, if any at all.