The veterinary product Bag Balm contains 0.3 percent of 8-Oxyquinolin sulfate in petroleum and lanolin base. Although not overtly toxic to adults, it was removed from the human market due to suggestions that it was carcinogenic in laboratory animals. I don't think this product is suitable for lactating women. Lets stick to the human products such as Vaseline or lanolin if necessary. *********************************** T.W. Hale, Ph.D. Associate Professor of Pediatrics Texas Tech University School of Medicine ***********************************