I had HPV p16 one year ago and six weeks of radiation ending the first week of August/2024. Very few chemo, maybe 6. I could not get rid of my dry mouth, no saliva and no appetite months and months later (Xerostomia). I heard about HBO Rx from someone who had the same cancer and side effects and he swore by HBO or hyperbaric oxygen. I go M-F for two hours in a chamber once a day. I am at around 30 sessions today and slowly I am noticing my throat is less constricted and I can swallow meds as there must be more saliva active. One oncologist on a consult before this said 3 of my 4 saliva glands were damaged and not working from the radiation. Has anyone tried hyperbaric Rx for radiation side effects?