We report the first case of Kamisyoyo-san-induced adult respiratory di
stress syndrome (ARDS). A 59-year-old female was given Kamisyoyo-san f
or treatment of seborrheic dermatitis. She then presented with a respi
ratory illness having clinical, radiologic and functional characterist
ics of ARDS, Bronchoalveolar lavage fluid showed an increased number o
f lymphocytes, neutrophils and eosinophils, The lymphocyte stimulation
test with Kamisyoyo-san was positive.