Despite nose bleeds being a common injury, they are often treated incorrectly. Common mistakes are tilting the victims head back or advising them to lie down. This is alarming as victims can swallow their own blood, resulting in nausea and vomiting or worse still, choke. As evident in the image, pinch your nostrils and tilt your head forward. If bleeding persists for over 20mins, seek medical advice. Some people experience nose bleeds due to sinuses, allergies, cool temps and cold air, infections, exercise, fragile blood vessels that rupture easily etc.