I have one from a subq shot last week. Hard painless spot under the skin. Doesn't bother me so I'm giving it time. I never use a needle twice; just not worth it.
Oh damn. Why wipe the bacteria off the surface if youre going to let the body fluids marinate over several days on the tip of the syringe and then stick in back in? I vote infection all the way and go to the doc
My thoughts exactly. Just go to the doctor, what are you afraid of, a little lecture? They probably won't lecture you anyway. My experience has been that doctors appreciate honesty and won't hassle you over it.