Q. My dog has fever and bloody patches are spreading on body and the cephalexin is working
JESSICA L DESROSIERS
A. If your dog is currently being treated for a skin issue with cephalexin but is worsening or has an ongoing fever then it is best to bring him back into the vet for another examination. Your vet can check to see how the skin issues are progressing and may suggest a different medication that is better tolerated and more effective for your dog's condition. If your dog has a prolonged fever (over 103 degrees) or is worsening quickly then bringing him into the vet ASAP is best.