OAS puts a person at risk for anaphylaxis.
Many years ago, when on of my children developed atopic dermatitis as an infant, and then asthma, I kept a detailed daily diary. I noted, for example, that if that child was sensitized, having asthmatic episodes, eating tomatoes would cause eczema. I became aware that allergy is very complex--and realized this is one of the reasons bullshit artists, healers, etc, have a field day with allergy sufferers.
It is the height of the allergy season here, olives are flowering, and as I listened to the sneezing of my loved ones, I remembered that they have also mentioned itching of the mouth and throat when eating melons and certain other fruit. So I started reading.
I am recording some of the articles I have read--good way to keep track!
Allergies, hypersensitivties, allergy pathways---good information:
Cypress pollen/peach cross-reactivity--and conditional sensitization ( BP14) , once sensitized, one is more likely to become sensitive to similar allergens within the same protein family which are present in other allergen sources.
Not enough detail, but a good place to start:
from 1995, but worth saving:
This regards eosinophilic esophagitis. Fascinating.