Besides being unethical and illegal to prescribe medication over the phone, veterinarians can’t accurately diagnose or treat a pet without physically examining him or her. Veterinarians appreciate observant owners and want to hear their description of the pet’s symptoms. However, many diseases have the same symptoms but require different treatment. To determine the cause of the symptoms and ensure the best outcome, veterinarians need to examine the pet in person and sometimes perform diagnostic testing. Treating a pet for the wrong disease will cost more in the end and could be harmful or even deadly to your pet.