CMPA - Greek yogurt and failed milk challenge

[Bobojangles]

So after my ds had his most recent skin prick his allergy nurse decided to try a modified milk challenge (he can't do most of the milk ladder due to egg allergy). It went really well and he managed 3 chocolate buttons, some cheese and a baby pot of fromise fraise.

We where advised to crack on trying foods up to step 10 and he had about 4 days of cheese and baby yogurts. However he's had a really nasty reaction (not EpiPen thank good, but his worst reaction since diagnosis) toa few spoonfuls of Greek yogurt and I'm really disheartened has anyone else with cmpa found Greek yogurt in particular bad?

[peripateticparents]

My DP buys Greek yoghurt specifically because it's so high in protein ... which of course is what your Ds is allergic to, sorry