Most Searched For Allergy In Each Country

Most Searched For Allergy In Each Country

The Most Searched for Allergy in
Each Country

Hover over the map to find out which allergy comes out on top in each country.

Pinch and zoom to explore the map and find out which allergy comes out on top in each country.

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Allergy key:

Pollen/Spring allergy Alcohol allergy Water allergy Gel polish allergy Shrimp allergy Penicillin allergy Dog allergy Amoxicillin allergy Ginger allergy Soap allergy Cat allergy Milk/Milk protein allergy Aspirin allergy Hair dye allergy Strawberry allergy Gluten allergy Wheat allergy Caterpillar allergy Histamine allergy Sugar allergy Latex allergy Ragweed allergy Citrine allergy Nickel allergy Tomato allergy Dust/Dust mite allergy Benadryl allergy Egg allergy Seafood allergy No data

Allergies are very common, in fact, they're thought to affect more than 1 in 4 people in the UK at some point in their lives [1].

Becoming allergic to something can happen at any stage in your life [2] with allergies not always being present from childhood. If you are someone who starts to experience allergy symptoms, such as itchy eyes, runny nose and a rash, for the first time, you might be wondering what is happening? This uncertainty often sends people to “Doctor Google” to search for more information about what might be causing their discomfort.

A new study by Chemist4U has revealed what the most Googled allergy is in every country. By translating the word ‘allergy’ into every language and then analysing Google search data, the study revealed countries’ most commonly searched for allergy type.

According to search volume data, the top allergy in the United States of America is a dog allergy with just over 33,000 searches a month. As a nation where 56.04% of people own at least one dog [3] dealing with this allergy must be a daunting prospect for dog lovers.

In Italy, the top searched for type of allergy is a nickel allergy with 9,900 monthly searches. You might be thinking, surely the average person wouldn’t come into contact with nickel often enough for this to cause any symptoms, however, this metal is actually used in many products we come into contact with on a daily basis. Nickel is commonly used for alloying elements, coatings, batteries, and some other uses, such as kitchen wares, mobile phones, medical equipment, transport, buildings, power generation and jewellery [4].

In Germany, a histamine allergy is the most Googled with 8,900 searches a month. A histamine allergy or intolerance can be difficult to diagnose because it can mimic symptoms of seasonal or food allergies [5]. It is a relatively rare allergy, affecting about 1–3% of the global population [6].

The UK’s most commonly searched for allergy is a penicillin allergy, with Brits making on average 8,100 searches a month. According to the NHS website, around 1 in 15 people have an allergic reaction to antibiotics, especially penicillin [7] and if this is the case, another antibiotic will be administered.

Which allergy is the most searched for worldwide?

The most googled allergy across the world is a pollen allergy, or as it’s known in some parts of the world, a “spring allergy”. A total of 15 out of the 95 countries studied typed these phrases into Google the most. Both of these allergies are better known as hay fever, the seasonal allergy that is triggered by the release of pollen.

Depending on what pollens you're allergic to, your symptoms can last from a month to half a year. Tree pollen is normally released into the air in the spring, while grass pollen starts to float around during late spring and summer. Meanwhile, weeds pollinate in the fall. Depending on the weather, your category of hay fever and your sensitivities within the category, your symptoms can fluctuate from week to week. You can find out more about hay fever in our hay fever guide.

The allergy that resulted in the second most searches in total, is a penicillin allergy. Penicillins are a group of antibiotics that fight bacteria and were originally developed from the Penicillium fungi. It is one of the most widely used antibiotics to treat infections.

The third most searched for allergy in total is an allergy to cats. Typically a human’s symptoms are triggered by allergens produced in the cat’s salivary glands (mouth) and sebaceous glands in the skin of a cat. Allergies to cats are the most common animal-origin allergy and affect approximately one in five adults worldwide [8]. Due to the pandemic and modern lifestyles, such as working from home, more and more people are spending time indoors, therefore pet allergy is the second most common indoor allergy (second to house dust mites).

For some sufferers, having an allergy can be a nuisance and affect their everyday activities, but most allergic reactions are mild and can be largely kept under control. For example, the symptoms of seasonal allergies can be relieved through hay fever tablets and hay fever nasal sprays. However, some allergic reactions can be more serious.

If you suspect you or your child might be having an allergic reaction to something, it is recommended that you see your GP.


Chemist4U used search volume tools including ahrefs (searching all languages) to establish the average monthly search volume in each country for the top three most searched for allergies. The allergy with the highest search volume was then chosen as that country’s ‘most searched for allergy'. In cases of tied search volumes, the allergy that was first alphabetically was chosen. Data was pulled during May 2022 and search volumes are a monthly average from the previous 12 months. Where some countries haven't been included, this was due to not enough search volume data being available.


You can find the full data set here


  1. [1]
  2. [2]
  3. [3]
  4. [4]
  5. [5]
  6. [6]
  7. [7]
  8. [8]
Adrian Gatt -
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