Many children love nosebleeds due to the dry climate in autumn and winter. When a child has a nosebleed, the child should be placed in a sitting or semi-sitting position with the head slightly tilted forward, not in a supine position or with the head tilted backward, so as not to choke the blood into the respiratory tract. If the blood flows into the pharynx, stimulating the pharynx and coughing will aggravate the bleeding. At this time, a cold towel can be applied to the head, and a finger can be used to apply slight pressure on the nose for 3 to 5 minutes. Sterile cotton dipped in 0.1% epinephrine solution or Yunnan Baiyao can also be used to fill the nasal cavity for 10 minutes, and then the cotton can be gently removed. The above methods are only home first aid for patients with nasal bleeding, as there are many causes of nasal bleeding, local causes include nasal trauma, nasal vestibulitis, nasal foreign body, etc.; systemic causes include upper respiratory tract inflammation, thrombocytopenia, etc.. Therefore, timely diagnosis and treatment should be carried out in hospital.