What medicine should be used to treat a child's nosebleed?

Patient's question:

No

Doctor's answer:

Avoid eating too hot or spicy foods, otherwise it may cause blood vessels to dilate. To prevent rebleeding, apply petroleum jelly with a cotton swab gently to the nasal mucosa, twice a day, for 7 to 14 days. To prevent excessive dryness indoors, place a small pot of water in the room or use an air conditioner to increase the air humidity.