Intradermal skin testing done by a veterinary dermatologist.
See my posts /forums/search/environmental+allergies/
Good luck
PS: The initial testing can run about $800. the solution for allergen specific immunotherapy can run about $200 or more maybe 3 times a year. We just see the dermatologist once a year for a checkup. Otherwise he is available by phone and will talk to the regular vet if need be.
The treatment is lifelong, but it is natural, similar to the allergy shots people get to desensitize. No prednisone. Don’t get me wrong, it can take up to a year to kick in, but we saw results right away. They can still have flare-ups but they tend to be mild.
