Nosebleeds elevate the arm is not useful, on the contrary, sometimes may also play a counterproductive, so that the nosebleed accelerated flow. Most of the nosebleeds are caused by the rupture of capillaries in the nasal cavity or nasal septum, and the speed and volume of nosebleeds depend on the site of rupture, the size of the blood vessels, and more importantly, on the local pressure of blood flow. Generally due to the blood flow is more, if the upper arm will be raised, on the contrary will be due to the relationship between the water pressure, resulting in more blood flow to the cranial cavity, so that the local pressure increases, the amount of nosebleed may increase. For the correct treatment of nosebleed, you can use ice packs on the forehead, double temporal area or above the bridge of the nose to constrict the local blood vessels, reduce the local blood flow, and reduce the blood flow to the nasal septum and the nasal mucosa to reduce the blood flow and stop the bleeding. For raising the arm or tilting the head and other methods, generally will not play a hemostatic effect. In addition to ice compresses, gauze stuffing can also be used to stop bleeding.