....parmesan style cheese with egg in it. WTF??
DS1 has now outgrown his allergy, but turns out ds2 is also mildly allergic/intolerent. He had the tell tale grumpiness and runny bum and i traced it back to the parmesan.
DS1 was also intolerent to dairy, so wouldn't have been having cheese anyway, so this was a new one on me. 
I checked 5 different types of hard cheese/parmesan in the supermarket, and 3 of them had lyzosyme (from egg).
I'm sure many of you who have to avoid egg will already know this, but just thought I would post to bring it to the attention of others who don't.