Allergic rhinitis and sinusitis are both common diseases in ENT, each with its own degree of severity, and are generally not compared horizontally. Allergic rhinitis is a non-infectious inflammatory disease of the nasal mucosa caused by exposure to allergens. Clinical manifestations include paroxysmal sneezing, watery nasal discharge, nasal congestion and nasal itching. Patients can use oral and nasal antihistamine drugs and nasal spray hormone drugs to relieve symptoms of itching, sneezing and runny nose under doctor’s advice. Sinusitis is an inflammation that occurs in one or more sinuses. The usual clinical manifestations are a persistent and severe upper respiratory tract infection, nasal congestion with mucopurulent or purulent discharge, and localized headaches and smell disorders. Sinusitis patients can be treated with anti-inflammatory drugs, mucus promoters and other drugs, nasal spray hormonal drugs under the advice of a doctor. According to the different types of acute and chronic sinusitis using the appropriate drug standardized treatment. If the standardized drug treatment is ineffective, nasal endoscopic surgery can be used to open and expand the sinus openings through endoscopic guidance, remove lesions, so that the sinus drainage, in order to promote the restoration of the normal physiological function of the sinuses. For allergic rhinitis patients, avoid contact with allergens, so as to avoid triggering the onset of allergic rhinitis. For sinusitis patients should mainly eat a light diet to prevent respiratory tract and nasal infections, also has a certain help in the prevention of sinusitis.