There are many resources out there, I found our pediatrician's hospital to be a great resource.
Through Ai Dupont De Nemours, they have a resource website that has many other topics including Allergy. Kidshealth.org.
Of course the big organizations:
Food allergy research & education FARE/FAAN - https://www.foodallergy.org
Kids With Food allergies - http://www.kidswithfoodallergies.org
American Academy of Allergy, Asthma, and Immunology - https://www.aaaai.org
American College of Allergy, Asthma & Immunology - https://acaai.org
Asthma and Allergy Foundation of America - http://www.aafa.org
CDC - https://www.cdc.gov/healthyschools/foodallergies/index.htm
Now of course there are redundancy on the websites and there are a maze of links.
Come with questions in mind and try not to spend too much time.
Some basics from me:
If unsure then don't take a chance
Read label multiple times and completely
Cross Contact is a priority to understand
Ask
If not comfortable with the answer, get clarity
Call ahead
Key takeaways:
There are lots of data out there.
Try not to spend your valuable time bouncing from one subject to the next
Have a game plan when eating out
Cross contact understanding is important
Labels can be tricky
Your Actions:
Write questions you want answered
Give yourself a time limit for researching
Review the websites and sign up for what you see valuable
Call ahead when eating out
Ensure you are comfortable
Make sure you read labels thoroughly