I hate needles too. What helped me was a small town clinic I used to go to pre-internet. One of the techs decided to tape a few single-panel comics to the separator walls so we would have something else to focus on instead. It worked wonders.
Nothing like that anymore, so just turn my head away and try to think of funny stuff. I still flinch but it does help.
Canada’s former prime minister, Stephen Harper, did the same thing in 2013.
Sorry you’re living the same Nazi bullshit now.