K.B.
When they did the allergy testing, did they test specifically for animals? When we were trying to identify my son's food allergies, they didn't initially test for animals, but did later. Did the dog lick him in the places he got hives? My son isn't allergic to dogs, but if one licks him, he gets hives in that spot because he's allergic to wheat, eggs, milk, barley, and nuts. I think he gets the hives from the saliva from when the dog has eaten food and those allergens are in there, and then when he got licked it caused a reaction.