Rio, so glad your daughter is okay.
Wading in late here, but want to say you are absolutely not being hysterical. So sad that so many people are just saying there was no harm done.
Of course the teacher made an honest mistake. .. nobody would do a thing like this on purpose! Going against the grain, but I would put a complaint in writing, possibly to the governors, asking for the school procedures to be reviewed. An "honest mistake" like this could have resulted in a very serious reaction and could possibly even kill a child.
I agree with those who are saying that young children are capable of telling people that they have allergies. My own 4 year old has severe multiple allergies and I am confident that he would not eat anything which had not been okayed by me or his dad. However, it is simply not on to expect a smallchild to take this level of responsibility. The teacher should have been made aware of your daughter's allergy.
Seriously, I would complain to the school in writing. The procedures failed, and that is a problem they should be addressing. By making a calm and well-managed fuss about this, you could prevent your daughter having a more serious reaction another time, and you might even save the life of a child in the future
And do come over to the allergy board
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