The decision is NOT can you treat the goat...you indeed can do that. You MUST quarantine the goat and get your formalin...the formalin proces is not that difficult and does work. However, the decision is can you keep the remainder of your goats healthy? You will always have to watch for an absess to appear and be certain it does not release bacteria to contaminate your pasture, barn, pens, etc. Monitoring and treating ONE goat may not be a problem, but treatment for multiple goats gets trickier and is a forever deal. At this stage, I vote for completing the pregnancy, a careful delivery of bottle baby(ies), and having those kids tested. I would also consider the new CL vaccine. However, the valuable 80% protection afforded by the vaccination has a downside...your goats will always test positive for CL.