Patients with nosebleeds can be properly sprayed with tretinoin nasal spray, tretinoin nasal spray belongs to the hormone class of drugs, which can effectively shrink the patient’s nasal mucosa, nasal blood vessels, nosebleeds in the case of spray can effectively reduce the amount of nosebleeds, reduce the clinical symptoms of patients. When the patient’s nasal bleeding improves significantly, it is best to visit the hospital to clarify the patient’s condition, most of which is caused by the dryness of the patient’s nasal mucosa, the patient can spray with physiological sea saline or apply erythromycin ointment locally on the nasal mucosa. Patients should not apply tretinoin nasal spray for a long time to avoid the formation of drug rhinitis and aggravate the dryness of the patient’s nasal cavity. If discomfort occurs during the use of the drug, it is important to seek medical attention in a timely manner.