I was at the doctors 3 days ago to go get blood and the nurse was digging the needle into my vein, once she took it out there was a stream of blood. She then cleaned my arm with hydrogen peroxide and put on a bandaid. The next day, I went to take off the bandaid because it was bothering me and I see this bubble on my arm. This has never happened to me before. Could this be a reaction from excessive hydrogen peroxide or maybe from the bandaid?