Study Of Cutaneous Disease Accompanied With Pruritus In Pediatrics

Inclusion Criteria: * Chronic urticaria * Eczema \& dermatitis group * Atopic dermatitis * Prurigo group: Acute prurigo, Prurigo subacuta, Chronic prurigo * Pruritus cutaneous: Systemic pruritus cutaneous, Topical pruritus cutaneous * Giving informed consent * Children who have 2 grades or more pruritus score when assessed by the investigator or sub-investigator with the criteria for the diurnal or nocturnal pruritus score in the patient diary. * Children with a pruritus severity of "2.Mild" or severer on the first day of the treatment period. Exclusion criteria: * have a history of drug hypersensitivity * are pregnant, lactating or possibly pregnant female children. * have asthma that requires the treatment with corticosteroid. * cannot avoid the use of external steroid classified into "strong", "strongest" or "very strong". * have pruritus only on face and head. * have inappropriate complication of dermal disorder that may influence on the evaluation of the study drug. * are undergoing specific desensitization therapy or immunomodulation therapy or phototherapy.