See what you know about the prevention and treatment of nosebleeds. Vitamin C is required to form collagen, the connective tissue protein that keeps the walls of blood vessels intact. If you have chronic nosebleeds, consider increasing your daily vitamin C consumption, and avoid blood thinners such as aspirin. Overuse of nose sprays promotes nosebleeds. All of these groups tend to get nosebleeds more frequently than the general population.
Kids are more prone to colds, infections and allergies, all of which contribute to nosebleeds.
Smoking dries out nasal passages. This direct pressure should stop most nosebleeds within a half-hour. A cold compress helps narrow the capillaries and reduce the bleeding. Do not lie down or hold your nostrils shut. This will not stop the bleeding.