Veterinarians can’t diagnose over the phone. Besides being unethical and illegal, diagnosing by phone doesn’t allow veterinarians to physically examine a pet and you may (unknowingly) leave out a critical piece of information that can be gathered through this process. A physical exam is necessary so your veterinarian can provide an accurate diagnosis and proper treatment. Treating a pet for the wrong disease or condition will cost more in the end and could be harmful or even deadly to your pet.