Ds (3) is allergic to some nuts and a couple of other things like lentils. He has only had skin reactions so far (red blotches round mouth and eczema flare-ups).
Today I let him lick the bowl after baking and within a few minutes he had large red blotches on his face wherever the cake mix had touched. I gave him Piriton and it went really quickly. It was basic sponge mixture with some vanilla and cocoa powder.
He has licked the bowl before with no reaction. He has had bites of omelette with no reaction.
He's randomly becoming allergic to eggs, isn't he? 