Our dairy goat seemed to have a staph infection on her udder. She had multiple swollen pimples on her udder. Frist we used 1 t. Turmeric on her feed each morning and evening. That helped a lot but didn't cure it.
Finally, I mixed equal parts of garlic powder, olive leaf powder, and Oregon Grape Root powder in a jar. We top dressed her feed with this - 1 and 1/2 t. Morning and evening. We also sprayed her udder twice a day with apple cider vinegar with a few drops of GSE and Tea Tree Essential Oil. (Maybe 1/4 cup vinegar with 4 drops GSE and 10 drops tea tree.)
This worked and cleared it up completely. It did take a couple of weeks. But she had had this for months, so that didn't seem too bad.
~Mama to Many~