My NAET practitioner has been telling me about this type of thing.

If the treatment happens not to hold, it gets repeated.

I would think from what she has explained to me, that if it seems like a certain allergy has gotten worse, just take some of the offending substance (cat hairs, for instance) in for a specific treatment. There could be something else that you are allergic to that is involved in your current reaction. S/he can retest you for the original allergy.

From what I understand so far, there are also combinations that we can need to be treated for. For instance, you might get treated for the cat and for the dust, but you might need to be treated for the combination of those. Or, perhaps mold is now an issue in the home and it is not the cat, but the fact that the cat has been lying in a spot where mold has grown. I'm not saying you have a cat or a moldy house, just examples.

I would not give up, it is was me, I would look for the cause of the new reaction and consider that it is not necessarily a failed treatment, but a new situation that looks like the old one.

Since it has been awhile since you posted, I am presuming that I am writing this for the benefit of others. What was your outcome?