Can you post some pictures of the toe? What type of disinfectant do you have? Chlorhexidene (Hibiclens) or Betadine are good for an open wound. Then you may use Triple Antibiotic Ointment on the wound, and it might be good to either dress is or place her on a clean towel for bedding in a dog crate for a day. Place food and water inside secured to the crate.