DS (almost 29 months) has been completely off dairy for 6 months now after we found out he has a strong IgG intolerance to cow's milk. With him it was a delayed reaction and usually resulted in NWs/stomach cramps, loose stools and lowered immune system, as well as nasal congestion.
Since he's a picky eater and is starting to want more what his sister and friends at school have, we decided (in consultation with our holistic practitioner) to give trace amount of dairy a try. He had homemade pasta sauce on Tuesday night that had a small amount of cream in it. His portion had maybe 1 tsp worth. Then on Wednesday night he had two small chocolate chip cookies that have butter as the 5th ingredient. Well last night he had his first extended NW in a while and today he took only a 40 minute nap - that hasn't happened in ages. Then as I was changing his diaper before I saw some bumps on his tongue and I'm pretty sure it's NOT coxsackie as he's eating and drinking normally and not acting sick. And as we took DD home from the bus before I had to pull a large green booger out of his nose - again that hasn't happened in a long time.
Sigh... I wasn't really expecting him to be able to have much dairy yet, just hoping maybe occasional small amounts were OK. And I'm just surprised that such a tiny amount can cause a pretty significant reaction!