translation for sentences re: food allergy

[Sam]

I've been living in China for the past few years but am returning again after recently being diagnosed with some food allergies. For the most important one to shellfish I wanted to make up a printed card to take with me to restaurants to reinforce when I explain to the waitress that I actually am allergic and they need to be careful.

This is what I have so far:

我对甲壳类动物过敏，有致命危险。

I have a life threatening allergy to shellfish.

包括虾，蚝油，蚌，蟹，对虾，明虾和龙虾。

This includes shrimp, oyster sauce, oysters, crab, prawns and lobsters.

But I need some help with the following sentence:

如果我吃这种食品, 食品根这种做在一起，或 ?? ,我将需要立即医药治疗.

If I eat this food or any food that has been cooked with it or touched it, I will need immediate medical attention.

Can anyone help me finish the translation?

Thanks.

[lingjas]

我对贝壳类海鲜，有致命性的过敏。

包括虾类，蚝油，蚝，蚌和蟹类。

如果食用了这类食品或与它们接触过的食品，我将会需要接受紧急医药治疗。

[trien27]

我对贝壳类海鲜，有致命性的过敏。

I have a fatally allergic reaction towards any seafood that has shells.

包括虾类，蚝油，蚝，蚌和蟹类。

Including any variety of shimps/prawns, oyster oil, oysters, clams and any variety of crabs.

如果食用了这类食品或与它们接触过的食品，我将会需要接受紧急医药治疗。

If I ate these types of food or any foods that they had contact with, I would need to get emergency medical treatment.

Note:

To Sam,

Lingjas has corrected your Chinese and I have just translated Lingjas's Chinese into English.

[Sam]

thankyou!