This procedure is completely successful and painless. I was told by a number of oncologist that I should just get used to it because nothing would be effective.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2893353/#:~:text=Radiofrequency%20ablation%20(RFA)%20has%20been,1%20or%202%20RFA%20sessions.
You have to acertain that they are using the Halo 90 ablation wand and not settle in when they say radiofrequency. This wand was specially developed for esophageal ablation. In the use for proctopathy ( radiation proctitis has a different etiology than proctitis) it is shown to restore the normal epithelium because of a carefully controlled depth of frequency.
I had a difficult time finding a practitioner. But found the best at USC, dr. Buxbaum. My experience was six years ago, so maybe it is more commonly known now.
Radiation proctitis doesn't begin immediately after radiation but is progressive even years after treatment.
It's an outpatient procedure done in hospital. I would check in a 6am and usually have the procedure by noon. They usually administer light anesthesia, but I never had it because the rectum doesn't have any pain nerves. You get a little sensation with the application of the wand, but you can watch the whole procedure. I never experienced any pain afterward. I say never because I had it done several times. The treated areas never rebleed, but new areas will bleed and they limit the number of applications.
Hyperbaric oxygen treatment also works, but it takes a long time. Its two hours a day in a chamber and it can take up to 90 sessions to achieve results.