Food Allergies Treatment

Just today, we found out that our 2 year old is allergic to at the very least, walnuts, and probably other types, including peanuts. I have a call into my allergist to get him formerly tested – something that I was putting off until the new year (and new insurance) but with this call from his pediatrician I now have a message with my clinic to try to get him in tomorrow or Monday for more testing. For the time being, my pediatrician prescribed an epi pen for us to carry around.

I am scared to death that I will be the mom to the kid in the classroom with the peanut allergy. How do you deal with it? Are there any good resources out there for me to figure out what name brand foods to avoid, etc.? Am I over reacting? Will I become or need to become a label reader?

Help! I appreciate your assistance in advance.