Shellfish allergies and dining in Paris
I'm lucky enough to spend a couple of weeks in Bordeaux, Toulouse and Paris visiting friends, seeing the sights and making sure the wine & cheese are still tasting good.
My wife has a very severe shellfish allergy. Dining at friends isn't a problem, and we both speak enough French to converse and make ourselves understood.
So, my question is this. Whilst in Paris we'll be dining out and about ( reservations will be made from CDG while we wait for the train to Bordeaux. I've got a long list that I won't post here), how accommodating are restaurants for allergies like these? Of course we'd mention them when making reso's, but is it a big problem for them? It's more a case of making sure there's a separate prep surface and cooking area, and making sure that frying oil isn't used for shellfish.
She eats duck and other poultry, dines on fish but not shellfish, however no pork, beef or lamb, so there's enough stuff on most menus to keep her very happy. My concern is more cross-contamination from shellfish.
Anyone else have this kind of concern, and how did you communicate it so everyone walks away smiling and happy?