While people often panic when blood starts dripping from their nose, proper care should halt the bleeding in an instant. According to the U.S. HealthWorks Medical Group, which operates a trusted downtown Sacramento urgent care center, the first thing you should do is to sit straight up while leaning slightly forward. This position reduces the blood pressure in your nasal veins and prevents you from swallowing the blood.
Using your thumb and forefinger, firmly pinch your nostrils for about 10 minutes (breathe through your mouth for the time being). As with all wounds, the pressure will discourage blood flow and promote clotting. Be patient, though—don’t release your hold until the full 10 minutes are up.
http://ushealthworkssacramentomail.wordpress.com/2014/07/01/downtown-sacramento-urgent-care-center-on-how-to-treat-nosebleeds/
