What caused the scars on the Dalai Lamas arm?
For what it’s worth, both my parents (now in the 65-80 year range) had double vertical scars on their upper arms from vaccinations. I can’t find a good photo on teh interwebs, but they looked rather like blisters after they had broken–sorta puckered around the edges, with more “traditional” scar-like tissue in the center. One above the other, about 2 inches apart, both about the size of a dime. Can’t tell from the photo if what’s visible on the Dalai Lama is similar (the olive complexion might react differently to that of my Northern European parents, as well).