Conventional superficial X-ray versus Grenz ray therapy in the treatment of constitutional eczema of the hands

Twenty-five patients with symmetrical constitutional eczema of the hands, resistant to topical treatment, took part in a double-blind trial which showed that 300 rad (3 Gy) of conventional superficial X-ray therapy was superior to 900 rad (9 Gy) of Grenz ray therapy (both given in three divided doses at 21 day intervals).