That's really individual. Mine bleed a tiny bit, and then they are fine. If your fina shot is painful (too much BA), then your delt will probably swell up. Just wear a short sleeve shirt if you can (I know that is frowned upon when you are stripping for elderly sugarmommas, but see what you can do).
I get mine from Jean Coutu or the closet pharmacy. What are these needles used for instaed of roids? When I buy them, they dont ask, but i was curious. Will the guy think I have some weird desease? lol