Wellllllll--
understand that among persons with
anaphylactic CLASSIC food allergy, the "rules" with OAS seem to be quite a bit different than for everyone
else who has "allergies."
That is, someone like my neighbor who has pollen allergies might have birch or grass pollen OAS, and be able to eat those things
safely, but for annoyance, or but for during that few weeks of the year when that pollen cup is full.
There might be little-to-no danger in eating them.
Someone who has demonstrated ability to anaphylax, particularly from ingested allergens, on the other hand-- what I've gotten out of the literature, textbook references, and anecdote over the years is that people with anaphylactic food allergies
tend to have the ability to have OAS become anaphylactic as well.
There's no bright line dividing "OAS" from "food allergy" if you already have IgE-mediated food allergy, in other words. Oh, sure, it might start out that way, and maybe even be stable for some people-- but not for everyone.
It doesn't seem THAT rare to me among people on the end of the food allergy distribution to have an OAS trigger go wild and suddely jump ship to become a food allergen that is capable of causing systemic reactions. Some of them can still get away with heat-denatured allergen, and some cannot.
DD has apparently had this happen to her now with apples. DH has had it with melons and apples both. I have it with oranges (well, really ALL citrus fruit).
What is potato even cross-reactive with, though? Isn't it grass?
