An 11-year-old child has been experiencing nasal bleeding upon waking up in the morning recently. Last year, they were diagnosed with allergic rhinitis, suffer from nasal congestion at night, and are currently on medication. Possible causes include dry air and dry nasal mucosa, which can be treated by applying mineral oil or peppermint oil to the nostrils. It is recommended to check routine blood test to rule out blood system diseases, and to pay attention to drinking plenty of water, eating more vegetables, and avoiding picking the nose.