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Updated on September 23rd, 2025
Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Female | unspayed | 10 years and 4 months old | 48 lbs
My medium sized 45 pound border collie mix has mastitis I believe or start of it . She had a knot behind one boob and two different boobs discharging brownish yellow milk. ( She's ten and her puppies are four weeks now, my male chewed through the door while I was gone to doctor . But I wanted to know if I can really use the cow antibiotics at tractor supply had another vet tell me I could , and how much would I give her ?
1 Answer
Answered By Dr. Leigh, DVM
Veterinarian
Published on November 13th, 2017