Ask Amy: Allergies bring on rash of restrictions

The answer is that you must bring your own food to gatherings involving food, because you can only safely eat something that you have prepared. Communicate with the host beforehand: “I am on an extremely restricted medical diet because of my allergies, so I need to bring my own food. Will that bother you? I really don’t want to impose or make a big deal about it, but until I get my diagnosis sorted out, it is vital that I only eat food I’ve prepared myself.”