This app was mentioned in 2 comments, with an average of 1.50 upvotes
You can check out this app, too. Not sure if it will meet all your needs since I have a different allergy than you.
The makers daughter has food allergies and wanted to make an app to allow them to travel. I used it on my recent trip to France.
https://play.google.com/store/apps/details?id=com.wright.paul.allergytranslationcardapp
Hey all, my daughter was diagnosed with Celiac disease 18 months ago, one problem we faced was when in foreign countries we struggled to communicate with food providers. So I made an app. Allergy Travel Cards is an Android app that produces food allergy cards for the 14 most common allergies in 12 different languages, which covers over 100 countries.
It has free and premium versions so if anyone wants a promo code please reply.
I am currently working on additional features and languages.
PeaJay