We reported a tendency for the cedar pollinosis patients to out-grow of their symptoms, with increasing age. 1 The morbidity of cedar pollinosis was 1525 out of 9753 persons (15.6%). 2 Thirty patients (1.97%) consider to be out-grow their symptoms without any immunotherapy. 3 It seems that high age of onset, having no familial histories and no diathesis of the allergic diseases might be good possibilities in patients' “grow out” of their symptoms.
