One of my doe's has a hard udder and I'm pretty sure it is mastitis. She is due to kid in early March. It is like a large clump in one side of her udder. What should I give her? I have read that some use a hot pack, tea tree oil, peppermint oil or garlic. Would that be enough? Should I just try a hot pack and tea tree oil at first? I think she has a bad case of it. Should I use something like ToDAY or penicillin? thank so much everyone!