This paper deals with the results obtained in one experiment with rabbits, made in order to see which treatment should be the best one against ear canker. Five treatments, each one with 3 rabbits, were tried : Detefon, Insect-o-Blitz, Turpentine with oil, DDT with 10% of vaseline and Kerozene. The best results were obtained with DDT-10% and vaseline-90% which proved to be more efficacious, saving the animals quickly than the other treatment.