I am wondering what testing was done. If it was an allergy panel based on blood testing, I can speak to that. My daughter also has possible allergy to peanuts and wheat based on the blood test; Class 1 for wheat and Class 2 for peanuts. I have done some research and have come to realize 2 things:
1. This test just shows the probability your child could be allergic or develop allergies. The Classes are from 1 - 6, so a Class 1 means a small probability, but it does exist while a Class 6 is extremely probable. That said, a child could be considered Class 1 for peanuts and have a very strong reaction to peanuts similar to a Class 6 or have no reaction at all. However, since there is a possibility of a reaction, limited exposure may be wise to lessen the chance of a reaction developing.
2. An allergic reaction can be something not so noticeable. For example, my older daughter is allergic to dust mites (Class 3) which initially showed up as occasionally clogged ears. It could also manifest as a weakened immune system therefore causing the child to get sick more easily or making other allergies worse.
I guess my bottom line is, I think it is wise to limit if not eliminate possible allergies depending on the Class. With my daughter who could be allergic to wheat and peanuts, we have eliminated all products that obviously have peanuts and reduced considerably her wheat intake. We just found out about it, so we'll see how it goes.