Does anybody have any good experience of buying allergy translation cards? I'm thinking something like this or this? I have anaphylaxis to shellfish, and am allergic to wheat, kiwi and pineapple. I'm travelling to France the week after next, where I'm relatively confident with reading menus, but then in a few months I shall be driving through Europe, and after a recent nasty experience in Italy, I'm a bit worried about not speaking the languages well enough to get it right.
Has anybody ever ordered any of these cards? I want something that looks suitably professional to be taken seriously.