regarding challenge phase of food trial

I know that i haven't been able to do a "real" food trial for Raj due to food industry issues, but since her bald spots grew back in i consider it successful nonetheless. Click here for a previous thread that gives more info on the specifics.

So my question is, how fast would i see symptoms return in the challenge phase? I started giving her a few kibbles of the Nature's Logic rabbit dry in with the IVD green pea and rabbit. This was only for about 3 days, and like i said, only a few kibbles each meal. But my husband and i are both under the impression that she seems to be scratching more, and more intensely. Would it happen so fast? I suppose since it's an immune response that would make sense...

I feel like an idiot, i didn't notice that there was millet in the NL food or i wouldn't have even tried it on her since that's an ingredient in the Chicken Soup that apparently triggered the allergy thing. Then again, it could be some other shared ingredient like eggs or flaxseed or whatever. Or maybe i'm just imagining it and she really wouldn't be showing symptoms so quick?

I don't have much experience with this, but yes - I think you could see a reaction that soon. I don't think you are imagining things.

I have alot of allergies to food and other things/// quickest reaction was 30 sec

Ugh. Well, now i have to find something else to try i suppose. I worry that trying all these foods is just sensitizing her to more ingredients, but what can i do? I'm thinking either Raw Instinct or Serengeti will be my next try, hoping that it's grains that she's allergic to and not something like kelp which seems to be in everything.