We introduced here an airborne contact dermatitis due to Japanese cedar pollen in the spring and autumn season. The Japanese cedar pollen dermatitis (JCPD) rash has a characteristic appearance which is similar to an urticarial erythema eruption without papules. The scratch-patch-test using JCPD is useful for diagnosing JCPD. We also introduced a therapy and prevention for JCPD.Skin Research, Suppl. 23: 25-28, 2015
