Allergy Treatment in Spain: What Tourists Need to Know About Hay Fever

You step out onto a sunny boulevard in Seville on a warm March morning, and within minutes your nose is streaming, your eyes are burning, and the sneezing will not stop. If you have never had allergy symptoms before — or if your usual hay fever has never been this aggressive — the experience can be genuinely alarming. Allergy treatment in Spain is straightforward once you understand how the system works, and most of what you need is available without a prescription at any local pharmacy.

What's Happening in Your Body When Allergies Strike

Allergic rhinitis — the medical name for hay fever — is your immune system overreacting to something harmless. When pollen grains land on the moist lining of your nose and eyes, your body mistakenly identifies them as a threat. In response, specialised immune cells called mast cells release a flood of a chemical called histamine. Histamine is the same substance your body uses to fight genuine infections, which is why the symptoms feel so much like being ill.^[1]

Histamine works like a fire alarm that cannot tell the difference between a real fire and burnt toast. It dilates blood vessels in your nasal passages, causing swelling and congestion. It stimulates mucus production, which is why your nose runs constantly. It triggers nerve endings, producing the itch in your nose, throat, and eyes. And it causes the smooth muscles around your airways to tighten, which is why some people feel a heaviness in their chest or start wheezing alongside their nasal symptoms.^[2]

The reason your allergies may feel worse in Spain than at home comes down to pollen exposure. Spain has one of the highest pollen counts in Europe, driven by widespread olive groves, cypress trees, plane trees, and extensive grasslands. If you have never been exposed to olive pollen or cypress pollen before, your body has no existing tolerance — the immune response can be far more intense than what you experience with the grasses and birch trees common in northern Europe or North America. The Spanish Aerobiology Network regularly records pollen counts two to five times higher than those in the UK or Germany during peak months.^[3]

Travel itself compounds the problem. Sleep disruption, stress, dehydration, and alcohol consumption — all common on holiday — weaken the regulatory parts of your immune system that normally keep allergic responses in check. So even if you manage your hay fever well at home with a daily antihistamine, you may find that the same medication barely takes the edge off in Spain. That does not mean the medication has stopped working. It means the pollen load your body is dealing with is significantly greater than what it normally encounters.

What You're Feeling — and How to Tell It's Allergies

The classic symptoms of allergic rhinitis are a runny nose with clear, watery discharge; repeated sneezing in bursts of five or more; itchy eyes, nose, and roof of the mouth; nasal congestion that makes you breathe through your mouth; and red, watering eyes. Many people also notice a dull pressure headache across the forehead and cheeks, a scratchy throat from post-nasal drip (mucus running down the back of your throat while you sleep), and fatigue that feels out of proportion to your activity level.^[1]

The key way to distinguish allergic rhinitis from a cold is the pattern. A cold gets worse over two to three days, then steadily improves. Allergies stay at a constant level of misery — or fluctuate based on pollen exposure. If your symptoms are worse outdoors and better in air-conditioned spaces, that strongly suggests pollen allergy rather than a viral infection. Itchy eyes are another reliable indicator: colds rarely cause eye itching, while allergies almost always do. Fever, body aches, and yellow or green nasal discharge all point toward infection rather than allergy.^[2]

The fatigue deserves special mention because many tourists do not realise allergies cause it. Histamine disrupts sleep architecture even when you are not consciously aware of congestion at night. Studies show that untreated allergic rhinitis reduces sleep quality by an amount comparable to mild obstructive sleep apnoea, leading to daytime drowsiness, difficulty concentrating, and irritability.^[4] If you have been waking up exhausted despite adequate sleep hours, allergies may be the explanation — and treating them will likely improve your energy levels within a day or two.

The Medications That Actually Work for Hay Fever

Allergy treatment in Spain relies on the same evidence-based medications used worldwide. The good news is that most first-line options are available over the counter. For severe or persistent symptoms that do not respond to standard treatment, a prescription medication called montelukast can make a significant difference. Here is how each option works and when to use it.

What You Can Buy at a Spanish Pharmacy Without a Prescription

Spanish pharmacies — farmacias — are well-stocked for allergy treatment, and the range of over-the-counter options is broader than what many tourists expect. You can walk in and buy cetirizine, loratadine, fluticasone nasal spray, and antihistamine eye drops (such as ketotifeno or olopatadina) without a prescription. Most pharmacists speak at least basic English, particularly in tourist areas. If there is a language barrier, the simplest approach is to say alergia al polen (pollen allergy) and the pharmacist will guide you to the right shelf. You can also name the product directly: cetirizina, loratadina, or Flonase. Expect to pay between €4 and €12 for a box that will last one to two weeks. Spanish farmacias are identifiable by a green cross outside, and in cities you will find one open 24 hours — called farmacia de guardia — on a rotating schedule posted on every pharmacy door. The one thing the pharmacist cannot sell you without a doctor's prescription is montelukast. If over-the-counter options are not controlling your symptoms, that is the point at which you need a medical consultation.

When Your Symptoms Need a Doctor, Not Just Antihistamines

Most cases of allergic rhinitis are manageable with over-the-counter antihistamines and a nasal steroid spray. But there are situations where the symptoms cross into territory that requires medical evaluation — either because they suggest something other than simple allergies, or because the severity warrants prescription treatment.

People with pre-existing asthma should be particularly vigilant. Pollen exposure is one of the leading triggers for asthma exacerbations, and Spain's high pollen counts can provoke attacks in people whose asthma is normally well controlled. If you are using your rescue inhaler more than twice a week, or if you are waking at night with coughing or breathlessness, your allergies are affecting your airways and you need a medical review. A doctor may prescribe montelukast alongside your usual asthma controller, or adjust your inhaler regimen. An online consultation can assess this and issue a valid Spanish prescription for the appropriate medication.

How to Get Allergy Treatment Quickly in Spain

For most tourists with hay fever, a trip to the nearest farmacia will solve the problem. Cetirizine or loratadine combined with fluticasone nasal spray is a highly effective combination that covers all the main symptoms, and you can have both in hand within ten minutes. That combination alone provides adequate relief for the majority of people with moderate allergic rhinitis.

The situation becomes more complicated when over-the-counter options are not enough. If you are dealing with severe nasal congestion that does not respond to sprays, if your allergies are triggering asthma symptoms, or if you need a medication like montelukast that requires a prescription in Spain, the standard tourist options — walk-in clinics, emergency rooms, private hospitals — are slow, expensive, and stressful. Private clinic consultations in Spain typically cost €80–150, and the wait to be seen can consume an entire afternoon of your holiday.

For a problem that a doctor can diagnose based on a clear description of your symptoms and medical history, an online consultation is the most practical solution. Through PrescribeMe, you complete a short medical questionnaire in English, a licensed Spanish physician reviews your case, and — if clinically appropriate — issues a receta electrónica privada (a valid private electronic prescription). That prescription is sent directly to your phone and accepted at every farmacia in Spain. The process typically takes under an hour. If your over-the-counter antihistamine is not enough, or if you have a known allergy pattern that benefits from montelukast, this is the fastest way to get the treatment you need without losing a day of your trip to a waiting room.