Benadryl is a human medication that can be used in dogs to relieve allergy symptoms. But you have to be sure you're giving the right dose for your dog's size. (Photo Credit: E+/Getty Images ...
Therefore, allergy medication for dogs often plays a role in treatment. Some dogs, with very mild allergies, can be managed with over-the-counter allergy medications like Benadryl or Zyrtec .