I was recently cleaning off a CD and in a hurry I cleaned the CD by breathing warm air on the bottom of the CD to wipe off. The CD ended up cutting my lip, like a paper cut, and bled for a little bit. I went on with my day as usual but the next day I irritated the cut eating breakfast and it turned into a blister. I'm freaking out right now because I've never came in contact with anything or anyone after my cut and I have no idea how it turned into a blister. Can anyone help?