Took me 30 years to find out that I have pollen allergies, and from that food allergies.

And because my body only produces very little diamin oxidase, that leads to heavy symptoms elsewhere in the body. I just recently got so far that diet and fenistil make things usually bearable, and when it gets heavy, only a little more fenistil fixes the symptoms. I don't think the symptoms are anaphylaxes, but overabundance of histamine. I had too many of them and I'm still here, never had to use the epi pen.

But from all the specialists I visited in my country, no one ever told me, that OAS exists, or oral therapy against them.

I can't say how thankful I am for the new ideas from your post and the child posts!