(1) "All things are poison, and nothing is without poison; the dosage alone makes it so a thing is not a poison." (2) assume it isn't absorbed into the larger

(1) "All things are poison, and nothing is without poison; the dosage alone makes it so a thing is not a poison." (2) assume it isn't absorbed into the larger body. Still the tissue absorbing it got a YUUUUGEEE dose. Then presumably most of it is washed out minutes later. So under that assumption we worry about localized tissue damage ---- --- which, if we're talking about things like cancer patients here who commonly get zapped with X-rays and gamma rays and antimatter and such, is perhaps not out of the ordinary. If there's no systematic damage the main concern would be cancer. If the skin dies, it can be fixed. And heck, a lot of cancer treatments also cause cancer i.e. many children with blood cancers go onto later get other cancers due to the medicinal cure of their blood cancer side effect.