The results of the mastitis test that I sent out about a week and a half ago finally came today.
The result is that she has streptopcoccus species "isolated." Does this mean she is not contagious? I hope so... I know that the cause was environmental, this is my doe who sustained a severe udder injury this summer while I was on vacation, caretakers did not notice and it got infected
What is the next step in treating her?
Forgive my ignorance

I feel like I should know more about this than I do, and it seems very little specific information is available online... maybe I'm just looking in the wrong place.
EDIT to add: She is currently dry. The infection was so severe that she had already stopped producing milk by the time I got home and realized what had happened

We treated her initially with penicillin and a homeopathic udder infusion. This seemed to help, swelling went down and everything looked normal, but then flared up again a few weeks ago and udder filled with pus. Sent the pus in for testing and this is what came back. We have been stripping her out, and the pus has stopped, she's basically totally dry again. For the last couple days, we were stripping out watery liquid and some blood.