First Aid for Nosebleeds
If you get a nosebleed, sit down and bend forward. Sitting is preferable to lying down, since keeping the head above the level of the heart will help reduce the bleeding. Bending forward is also important. It lets the blood drain out through the nose rather than down the throat.
Hold the soft portion of your nose pinched together with your fingers until the bleeding stops. This might take five to ten minutes. Placing an ice pack across the bridge of your nose can also be helpful.