Allergic diseases can strike at a low age. Diagnosis of childhood allergic rhinitis is difficult and often difficult to treat. We compared the symptoms of Japanese cedar/cypress pollinosis between untreated children (≤12 years) and adults (20–60 years) in the pollen release period who were clinically diagnosed as having cedar pollinosis. We evaluated nasal and ocular symptoms with the Japanese Allergic Conjunctival disease Quality of Life Questionnaire (JACQLQ), together with self-rated throat and breathing symptoms. In nasal symptoms, nasal congestion is more severe in children, and among ocular symptoms, the eyes are itchier in adults than in children. Symptoms of sore throat were more common in adults than in children, and acne eruptions were more common in adults. Our findings suggest that there is a difference between children and adults in the appearance of symptoms in cedar and cypress pollinosis.
