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Nose Bleeding 

 A nosebleed is the loss of blood from the tissue that lines the inside of your nose. The most common cause of nosebleeds is dry air. Dry air can be caused by hot, low-humidity climates or heated indoor air. Both environments cause the nasal membrane (the delicate tissue inside your nose) to dry out and become crusty or cracked and more likely to bleed when rubbed or picked or when blowing your nose.

Other common causes of nosebleeds include:

• Nose picking.
• Colds (upper respiratory infections) and sinusitis, especially episodes that cause repeated sneezing, coughing and nose blowing.
• Blowing your nose with force.
• Inserting an object into your nose.
• Injury to the nose and/or face.
• Allergic and non-allergic rhinitis (inflammation of the nasal lining).
• Blood-thinning drugs (aspirin, non-steroidal anti-inflammatory drugs, warfarin, and others).
• Cocaine and other drugs inhaled through the nose.
• Chemical irritants (chemicals in cleaning supplies, chemical fumes at the workplace, other strong odors).
• High altitudes. The air is thinner (lack of oxygen) and drier as the altitude increases.
• Deviated septum (an abnormal shape of the wall that separates the two sides of the nose).
• Frequent use of nasal sprays and medications to treat itchy, runny or stuffy nose. These medications – antihistamines and decongestants – can dry out the nasal membranes.

First aid for nose bleeding

• Ask the victim to relax and to Sit upright and lean the body and  head slightly forward. This will keep the blood from running down your throat, which can cause nausea, vomiting, and diarrhea. (Do NOT lay flat or put your head between your legs.)
• Breathe through your mouth.
• Use a tissue or damp washcloth to catch the blood.
• Use your thumb and index finger to pinch together the soft part of your nose. Make sure to pinch the soft part of the nose against the hard bony ridge that forms the bridge of the nose. Squeezing at or above the bony part of the nose will not put pressure where it can help stop the bleeding.
• Keep pinching your nose continuously for at least 5 minutes (timed by clock) before checking if the bleeding has stopped. If your nose is still bleeding, continue squeezing the nose for another 10 minutes.
• If you’d like, apply an ice pack to the bridge of your nose to further help constrict blood vessels (which will slow the bleeding) and provide comfort. This is not a necessary step, but you can try this if you want.
• After the bleeding stops, DO NOT bend over, strain and/or lift anything heavy.