Hi Maria,
these test -Fur, Salvia & Blood test give false positives, my vet said they’re a waste of money, the only why to test for food sensitivities is to do a home food elimination trial, Feed 1 meat protein & 1 carb for 6 weeks & see doesn’t dog react or use the Hypoallergenic Vet Diet & Environment allergies is see a Dermatologist & have the Intradermal skin test done that humans have done for skin allergies..
Keep a diary & you’ll find your dog is probably suffering Seasonal Environment allergies, he’ll be fine thru Winter months then when Spring Summer come along he’s itchy scratching red paws, Baths are the best thing for allergies, wash off allergens & use baby wipes the days he doesn’t have a bath, also diet feed a diet high in Omega 3, strengthen immune system & find a local honey supplier within 3km of your home, the bees eat the pollens, give 1/2 a teaspoon twice a day, local honey build dogs immune to local allergens in his area.
