Hi Mindy,
Sorry for the slow reply. I need to do a lesson on mastitis.
What I do for mastitis in a dog is antibiotic herbs and Immune supporting herbs. It also really helps to have the pups nursing on the infected gland to keep things flowing. Look at the Infectious Disease Formulas Lesson in the Formulas & Formulations section for INFXN BugBuster and the Immunity Support formulas.
Don't use herbs or combine herbs with medications or use them during lactation or pregnancy without talking with your healthcare provider.