Don't hold your head back!!!! Everyone thinks that but that is wrong. Pinch your nose shut, lean your head forward and put a cold compress on the bridge of your nose. Hold your nose shut for five minutes. DON'T try and look to see if its stopped until the five minutes are up. If its still bleeding, try it again but this time for ten minutes. Don't blow your nose for a while either once its stopped cause you'll loosen the clots that formed to stop the bleeding. If it continues though and is excessive go to the er because the more blood you lose isn't good for you. Hope you feel better!