Chancriform pyoderma Infection with a Staphylococcus, or more often with organisms such as Pseudomonas aeruginosa or Proteus and combinations thereof, can result in chancriform ulcers. These lesions are more difficult to treat. In addition to effective systemic antibiotics, attention must be paid to skin care of the entire diaper area, and topical antibiotics may be required. Source: Bacterial Infections, Weinberg's Color Atlas of Pediatric Dermatology, 5e Citation: Prose NS, Kristal L. Weinberg's Color Atlas of Pediatric Dermatology, 5e; 2017 Available at: https://accesspediatrics.mhmedical.com/DownloadImage.aspx?image=/data/Books/1913/weinderm5_ch3_f012.png&sec=138561946&BookID=1913&ChapterSecID=138561928&imagename= Accessed: November 13, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved