“If they would take Diamine Oxidase Enzyme, they most likely would have accelerated the desensitization process.”
It could work in the opposite manner introducing another variable.
I highly doubt it, but yes it is possible.
Diamine Oxidase Enzyme degrades the histamines in the body. I’ve never known anyone to be allergic to it as it is in a mother’s placenta and breast milk.
Since the peanut allergy is a histamine response, it should help.