With regard to cat immunotherapy, if testing is positive for cat pelt and cat hair, do you include include 50% pelt and 50% hair if doing immunotherapy?   

The answer will likely depend on which extracts you have available and potentially on whether you can do any additional component resolved diagnostic testing. The major allergen in cat hair is Fel d 1. The major allergens in cat pelt are Fel d 1 and albumin. You could consider doing component testin...