Despite its innocuous name, bumblefoot is an infection, usually staphylococcus. It has to be surgically removed in order to heal. Surgery need be nothing more than scrapping the scab off with your finger nail, and then pulling the pus out with a Q-tip or scraping it. The pus must be completely removed. The pus is loose and is solid like wax.
Treatment plan is as follows:
1. Soak for twenty minutes in warm Epsom salts and Betadine.
2. Scrape off the scab
3. Dig out all the pus
4. Clean the wound well with soap and water, dry.
5. Pack wound with Neosporin or other wound ointment
6. Lay a nonstick gauze pad over the wound and wrap securely with Vetrap elastic bandage, selecting a color to compliment her feathering. This last is optional.
7. Unwrap and check on wound in two days, checking to be sure there is nor swelling from the bandage being too tight, and see if the wound is healing.
You may need to resoak and do more surgery if it appears not to be healing. Light cases heal in less than a week. Severe cases can take a year or more.