Most allergy tests look for the "usual" suspects: ragweed, mold, animal dander, mites, tree pollen, etc. I had a skin test at 11 years old against 35 common allergens and reacted to none of them. So I was told I have no allergies and therefore non-allergenic rhinitis. However, I'm very allergic to fragrance and lavender and have been since I was a baby. I've also since become allergic to jasmine, lilies, lilacs, juniper bushes, ceder, cats, dust, mold, hay, and fresh grass.