[Benign, diffuse external otitis].

A review of the literature on benign diffuse external otitis was done to throw light on the problems of pathogenesis, etiological factors, and various forms of treatment. A prospective study done on normal adult ear canals and a prospective study of 26 new cases of benign external otitis was done according to clinical criteria elaborated by Senturia to show that Coly-Mycin Otic is a drug to be recommended in the treatment of this disease.