I think it can have something to do with fleas in the training venues. I have pulled her out of classes and see. The current building has a dry soil floor even. This combination has happened in other years as well. I don't think it's diet as she gets a good variety. If that doesn't give any answers I will look into testing for allergiesWow so glad you got good news back on Deja!!! Will they be able to tell or test for what the allergen is?