If a patient with allergic rhinitis has nosebleeds, it is best to go to the hospital for a nasal endoscopy so that the doctor can carefully observe the specific condition of the patient’s nasal mucosa, such as mucosal rupture leading to nosebleeds, or whether there is a deviated septum or necrotic polyp formation inside the nasal cavity. Because of allergies, the mucous membranes are in particularly poor condition and may often be combined with nasal polyps. If it is a simple mucosal rupture is relatively good treatment, the patient can apply Tess pollen blocker or erythromycin ointment, both can effectively play a role in promoting mucosal healing, reduce the allergic reaction. However, if the patient has a deviated septum, the deviated bone is also prone to bleeding if it comes into contact with the mucous membrane of the turbinate, and surgery is required at this time. Also, if nasal polyps form and cause nosebleeds, surgery is likewise needed to solve the problem.