A nosebleed occurs when blood vessels inside the nose break. Because theyâ€™re delicate, this can happen easily.
What to do immediately: Lean slightly forward and pinch your nose just below the bridge, where the cartilage and the bone come together. Maintain the pressure for 5 to 15 minutes. Pressing an ice pack against the bridge can also help.
What not to do: Tilt your head back. â€œYou may swallow blood, and potentially some could go in your lungs,â€ says David Markenson, M.D., chair of the American Red Cross Advisory Council on First Aid and Safety.
When to seek medical attention: Call your doctor if you canâ€™t stop the bleeding after 20 minutes; if the nosebleed happened spontaneously; or if it accompanies a headache, dizziness, ringing in the ears, or vision problems.