I was in the ER due to cutting the tip of my finger with a knife and the wash rag I had wrapped around my finger was totally soaked with blood. I told my husband to throw it away, and the doctor spoke up and said, "Just take it home and soak it in a sink with peroxide!" So we did, and the blood disappeared right before our eyes! Just like a science experiment! We've used the tip several times since then - worked! Give it a try; but I hope you don't cut yourself bad!