Bites and stings

Most insect bites and stings are relatively harmless - but some spiders, snakes and sea creatures can be very dangerous. Learn more about them here.

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Allergies

Trusted information about allergy types, as well as allergy testing, anaphylaxis, antihistamines and common related conditions such as asthma and hay fever.

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Cat and dog allergy

Allergies to cats and dogs are common, and symptoms can be severe. Learn more about how to live with a pet allergy.

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Grass allergy

Grass allergy causes someone to have an allergic reaction to grass pollen spread by the wind. Learn more about its symptoms, diagnosis and treatment.

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Allergies and hypersensitivities

An allergic reaction occurs when the immune system overreacts to a foreign substance that usually causes few or no problems in most people.

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Sea creature bites and stings

Not sure if a bite or sting from a sea creature is dangerous? Here’s information about first aid treatments for jellyfish stings, sea snake bites and more.

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Allergies to seafood

Seafood allergy is complex, and 4-in-5 people will have it for life. Find out more about the symptoms and diagnosis of seafood and fish allergy.

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Egg allergy

Egg allergy usually starts in infancy, but most children grow out of it. Learn about the symptoms and diagnosis of egg allergy, plus ways to avoid egg.

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Allergy testing

Suffering from asthma or hay fever? They may be triggered by allergies. Find out more here about allergy testing.

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Nut allergies

Exposure to nuts, even in very small amounts, is a common trigger for a severe allergic reaction. Find out more here about nut allergies and how they can be managed.

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Pollen allergy

If you have pollen allergy, you may experience hay fever and asthma symptoms. Get tips on how to help manage your exposure to pollen.

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Food allergies

Some people have an allergic reaction to a normally harmless ingredient or type of food. This immune system response can range from mild to severe.

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Antihistamines

Antihistamine medications help ease allergy symptoms. Read more about how they're used to treat conditions like hay fever and asthma.

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Allergic reactions to cow's milk

About 1 in 50 infants has an allergic reaction to cow’s milk. Learn more here about allergy to milk proteins.

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Dust mites

Dust mites are tiny, spider-like creatures that feed on dust, pollen and fungal spores. Here's what to do if they trigger allergy symptoms.

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Hives

Hives is a skin rash that is often triggered by an infection or allergy. Learn more about hives rash (urticaria) causes, symptoms and treatment.

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Itchy eyes

Itchy eyes are usually caused by an allergy or by dry eye syndrome. There are things you can do to treat and prevent itchy eyes. Read more on the causes here.

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Allergen immunotherapy

Allergen immunotherapy is a treatment that can stop allergies from functioning. That way, you may be able to tolerate the substance you are allergic to with fewer symptoms. Learn more about allergen immunotherapy here.

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Tick bites

Tick bites are usually harmless, but it’s still important to know how to avoid and treat bites, and what to do after visiting an area where ticks are present.

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Anaphylaxis

Anaphylaxis is very serious and can even be fatal. See here for the symptoms to look out for and what to do in an emergency.

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Stinging plants

It can be difficult to know if a sting from a plant is dangerous or not. This article explains the best first aid treatment depending on the plant involved.

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How to use an adrenaline autoinjector

An adrenaline autoinjector can, in an emergency, save the life of someone who is having a severe allergic reaction (anaphylaxis). Learn how to use one here.

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Allergic reactions to antibiotics

Some people have an allergic reaction to antibiotics. Learn about the symptoms and the difference between allergic reactions and side effects.

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Perfume stinks: how fragrances can affect your health

Fragrances and fragranced products cause health problems, such as asthma and headaches, in 1 in 3 people. Find out what you can do if you experience symptoms.

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Adrenaline

Adrenaline (epinephrine) is a hormone that helps you react more quickly in a stressful situation. Adrenaline is also used as an emergency treatment for a severe allergic reaction (anaphylaxis). Learn more here.

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Insect bites and stings - infographic

Explore this infographic to learn about the insects that can cause infections and allergic reactions, the symptoms and treatments you should be aware of and tips to prevent bites and stings.

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Insect bites and stings

Most insect bites will clear up in a day or two, although some people can have severe allergic reactions (anaphylaxis). Learn more about insect bites and how to handle allergic reactions.

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Food allergies in children

Does your family have a history of eczema, asthma, hay fever or food allergies? Learn about food allergies in children and how to spot a reaction.

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Summer skin rashes

Summer rashes can be caused by things like sunlight, insects, sweating and overheating - especially if you have allergies and/or pre-existing skin conditions.

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What's the difference between food allergy and intolerance — and other health concepts?

Wonder why psychiatrists and psychologists are different? Did you know that prebiotics and probiotics are not the same? Learn the differences between those things, and more.

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