Hi I was bitten by my dog last March 2014 and I received 3 shots of vaccination. But last June I was slightly bitten again with a scratch by my other dog. I went back to the doctor and I received a booster. Today September 7, 2015, I was a again bitten by my dog, (the one who bite me last 2014) and it was deep and bleeding so much. My question is, do I need another vaccination again? I just have a booster last June.... Help me please.