sdandrea1 thanks.
My story is I had rad treatments for HPV neck cancer back in early 2020. Knock on wood, I've been cancer free since. However, the rad ruined my saliva glands and now my teeth are taking a beating and need some extracted. The oral surgeon will not extract them til such time I complete the hyperbaric treatments. My radiologist concurred.
Before this, I never even heard of these treatments.
Oh well, learn something new everyday even at my age😄.