Milk Allergy?

Briauna does not tolerate dairy products very well. At first it started with just a crazy runny nose. Lance also had this problem when he was about her age and he ended up growing out of it. Last Sunday someone in nursery gave Braiuna food with cheese in it by accident. By Sunday night the nose started running. Monday she had a fever and started getting wheezy. We have been giving her treatments and hoping she will feel better soon. This was by far the worst reaction she has had. I definitely need to make sure she doesn't get and dairy. It isn't life threatening but she sure is miserable.