Hyperbolic chamber

I found this post just now.

Yes, I did hyperbaric sessions in a six person chamber. Just before Covid, when it became a hazard to be close to six strangers. All the others were cancer patients of different tumor types. I'm given to understand that it is effective for radiation proctopathy (proctitis) , but that it can take excessive hours. I was there for the bleeding. Others were there to reduce swelling, some so that they could have retreatment. I did 20 hours. And I didn't experience a reduction of bleeding which can take 90 hours. I don't think that it always works for the bleeding, but I did notice reduction in inflammation in unrelated areas.
It was quite pleasant.

Thanks

You probably mean hyperbaric oxygen therapy (HBOT).

It can be used for radiation-induced proctitis, cystitis, colitis, and enteritis. Which one(s) are you looking to resolve? I have information on each of them.

Radiation damage to the bladder

Yes, radiation treatments can result in radiation cystitis; practicing the proper full bladder routine and careful application of radiation greatly minimizes that risk.
https://hyperbaricaware.com/treating-radiation-cystitis-with-hyperbaric-oxygen/
https://onlinelibrary.wiley.com/doi/10.1111/iju.14130