Sweating has been discussed as a pathogenetic factor in atopic dermati
tis. Here we show, that IgE which is specifically directed against all
ergens and which is also found in the serum of the same individuals ca
n be detected in significant amounts in the sweat. It is suggested, th
at excretion of specific IgE with the sweat of patients with atopic de
rmatitis may lead to enhanced binding to Langerhans cells and other Ig
E-receptor-positive cells, facilitating antigen trapping in atopic ski
n.