Hot towels should not be used for nosebleeds; using a hot towel may speed up blood circulation in the nose and make the nosebleed worse. Nosebleeds are usually treated with a cold towel, which can help stop the bleeding. Nosebleeds may be caused by trauma to the nose, rupture of capillaries in the nose, dry climate, etc. In normal times, pay attention to drinking more boiled water to keep the nasal mucous membrane moist and avoid blowing the nose too hard to minimize the possibility of rupture of blood vessels in the nose. Coagulation dysfunction caused by some blood diseases can also lead to nosebleeds, such as leukemia, thrombocytopenia and so on. If nosebleeds are frequent and the bleeding does not stop easily, it is best to check the blood count and coagulation function. It is best to go to the hospital in time to see a doctor after the cause of the nosebleed is clarified and then actively treated, so as not to delay the condition.