The treatment of constitutional eczema is one of the most important tasks of the pediatrician, for eczema occurs frequently in infants and in children, it can be very distressing and its treatment requires a special knowledge of child nutrition which only the pediatrician is supposed to possess. Moreover, eczema and its treatment are also of great interest to the clinician, for in eczema he has a chronic inflammatory process obviously connected with disturbances of the metabolism in general and with disturbances of the metabolism of the epidermis in particular. The eruptions exposed to view can be considered as test objects, the reaction of which to nutritional and circulatory changes, as well as to ectogenic irritations, can be studied without troublesome laboratory methods. This means a unique opportunity to investigate a fascinating problem of pathology by simple bedside observation.
The conditions which are usually designated as eczema are not by any