Report on a 58-year-old woman with eczema-like lesions in both axillae. The lesions had been treated as a mycotic infection, but no fungi grew in the cultures. There was massive growth of pseudomonas aeruginosa, and some few colonies of B-streptococci were found. The lesions disappeared two weeks after treatment with gentamycin and water dressings. The disease is reported as "gram-negative infection of the axillae" because its clinical and anamnestic features are similar to those of the so-called "gram negative infection of the feet".