I'm getting anti rabies vaccine shots at govt hospital cause I had a doubt that my friend's  puppy which is one month old had scratched me it was a small scratch but to be sure I'm getting these shots. they're giving me shots hypodermaly not intra muscularly by the insulin syringe. Till now I've got 3 shots 2 more are remaining. I got last shot on 2nd September, i get a little swelling everytime but today I noticed a bumpy swelling at the site of injection, it's circular about 1cm in diameter and it feels like a tight mass when I press it. I've massaged it with ice, but I'm a bit worried.