Study Of Perennial Allergic Rhinitis In Pediatrics

Inclusion Criteria: * Children with perennial allergic rhinitis. * Giving informed consent. * Children with a positive response to specific IgE antibody test. * Children assessed as positive in the nasal eosinophil count. * Children whose severity score of nasal symptom is 4 or higher. Exclusion criteria: * have spastic disease such as epilepsy * have a history of drug hypersensitivity * are pregnant, lactating or possibly pregnant female Children * are sensitive to pollen as a duplicate allergen and whose treatment periods are thought in the pollen dispersion periods * have vasomotor rhinitis and eosinophilic rhinitis * have asthma that requires the treatment with corticosteroid * have inappropriate complication of nasal disorder that may influence on the evaluation of the study drugs * have complicated with atopic dermatitis or urticaria that requires the treatment with antihistamine preparation * have started specific desensitization treatment or nonspecific modulation treatment but who have not reached the maintenance level of treatment * have received surgical treatment for reduction and modulation of nasal mucosa * redintegration therapy of nasal cavity to improve the degree of nasal airway * surgical operation to improve rhinorrhea.