Taking Eurostar and Ferries with a Nut Allergy and an AAI

An adrenaline auto-injector (AAI) — an EpiPen, Jext, or Emerade — is the single most important item in my luggage on any trip, and Eurostar and ferry crossings raise a specific question that flying doesn’t always answer as clearly: how do you carry it through security, and does anyone actually need telling you’ve got it? Having done this route more times than I can count, here’s what genuinely helps.

Yes, you can carry your AAI — and you should carry it, not check it

There is no rule preventing you from carrying an adrenaline auto-injector through Eurostar or ferry security, and every allergy organisation is unambiguous that it should stay in your hand luggage at all times, never in checked bags or a car boot if you’re taking a vehicle on a ferry. The reasoning is simple: if you have a reaction during the crossing, the device needs to be within reach in seconds, not stowed somewhere you can’t access until you’ve disembarked.

Anaphylaxis UK and NHS trusts both recommend carrying at least two AAI devices when travelling, not just your usual one, in case the first dose doesn’t fully resolve symptoms before help arrives or a second is needed. That advice doesn’t change because you’re on a train or a boat rather than a plane — if anything, response times to a reaction can be longer on a ferry mid-Channel than they would be on land, so having a spare matters just as much here.

Getting through Eurostar security

Eurostar’s own guidance is that you can take prescription medication and medical equipment with you, and while an AAI on its own doesn’t typically require special paperwork the way something like an oxygen cylinder or a large volume of medication does, it’s still sensible to carry a letter from your GP or allergy consultant, or a copy of your prescription, explaining what the device is and why you need it. It costs nothing to ask your GP surgery for one before a trip, and it removes any ambiguity if a security officer wants to check what’s in the pouch.

When you go through the security scanner, it’s worth telling the security staff directly that you’re carrying an adrenaline auto-injector containing a needle, rather than letting them discover it on the X-ray and ask. This is standard advice from NHS trusts for airport security, and the same logic applies at the Eurostar terminal — a calm heads-up avoids any unnecessary delay or confusion at the belt.

Ferries: generally more relaxed, but the basics still apply

Ferry security tends to be considerably lighter-touch than Eurostar or airport screening, particularly on the popular Dover–Calais and other short Channel crossings, and I’ve rarely had my bag searched in any detail. That doesn’t change the advice, though — the AAI stays in hand luggage, not in a suitcase in the car, and definitely not in the boot if you’re driving on with a vehicle, since you need it accessible for the entire crossing, not just the drive to the port.

If you’re travelling as a foot passenger on a ferry, the same hand-luggage rule applies as it would for any other form of transport. If you’re driving on, keep your AAI with you in the cabin or on your person rather than leaving it in the car during the crossing — vehicle decks aren’t accessible to passengers once the ferry is underway, so anything left in the car is out of reach exactly when you might need it.

What to pack alongside the AAI itself

• A doctor’s letter or prescription copy, even though it’s rarely asked for on these routes — it’s one of those things you’re glad to have the one time it is.
• Antihistamines, kept in hand luggage as well, since they’re often part of the same emergency response plan as the AAI.
• A written anaphylaxis action plan, if your allergy clinic has provided one, so that anyone travelling with you knows exactly what to do and in what order if a reaction happens.
• An insulated pouch, since both Eurostar terminals and ferry decks can get warm, and AAIs shouldn’t be left in direct heat or, at the other extreme, refrigerated or packed against ice.
• A spare device, in a separate bag from your main one if you’re travelling with someone else, so you’re not left without one if a bag goes astray.

Food on board: the part people forget to plan for

Eurostar’s onboard food service and ferry cafés are much the same as any other food service environment — nuts turn up in snacks, pastries, and pre-packed sandwiches, and staff on a train or ferry are rarely trained to the same standard as a dedicated restaurant kitchen on allergen queries. I generally treat both as I would any takeaway counter with limited allergen knowledge: bring my own food for the crossing rather than relying on what’s available on board, and check any pre-packed item’s label myself rather than asking a busy member of catering staff who may not know the recipe in detail.

Telling someone you’re travelling with

If you’re travelling with other people, make sure at least one of them knows where your AAI is at all times and roughly what to do if you can’t act for yourself. It sounds obvious, but in the specific chaos of a delayed crossing, a rushed boarding call, or bags being shuffled around, it’s easy for this to slip — and a mid-Channel crossing is a genuinely difficult place to be without a clear plan if something goes wrong.

Frequently asked questions

Do I need special permission to bring an EpiPen on Eurostar? No special permission is required, but carrying a doctor’s letter or prescription copy is sensible in case security asks questions, and it should always stay in your hand luggage rather than checked or stowed luggage.

Are ferries less strict about medication than Eurostar or airports? Security is generally lighter on most Channel ferry crossings, but the same core advice applies regardless — keep your AAI accessible on your person or in hand luggage at all times, not in a car or checked bag.

How many adrenaline auto-injectors should I travel with? Allergy charities recommend at least two, and more if you’re travelling somewhere remote or for an extended period, in case a second dose is needed before help arrives.

Can I get food allergen information easily on Eurostar or ferries? Not reliably. Onboard catering staff on trains and ferries generally have less detailed allergen knowledge than dedicated restaurant kitchens, so it’s safer to bring your own food for the crossing if you have a severe allergy.

What should I do if my AAI is close to its expiry date before a trip? Request a new prescription in good time before travelling — don’t rely on a device that will expire mid-trip, since a genuine emergency is not the moment to discover it’s out of date.