Just had allergy tests on my Frenchie/Boston mix out here in Beverly Hills. It was $250 and it also covered blood work. So he had the skin test and blood test.
It was completely worth it as we found out that his allergies were environmental and he is severely allergic to dust mites wool and cats. We have a cat so there isn't much we can do to remove that from his environment but we are now more careful with what they share (beds, water)
Sully is going to be starting allergy shots next week because they found that he isn't producing enough something in his blood to help combat the allergies (sorry a lot of big words were used here when the vet derm was explaining this).
I was given this shampoo by the vet and it has really helped with reducing the redness. When you use it you need to let it soak I to his skin for 5 min before rinsing. You can find it on amazon