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.
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.
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.
Suffering from asthma or hay fever? They may be triggered by allergies. Find out more here about allergy testing.
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.
Antihistamine medications help ease allergy symptoms. Read more about how they're used to treat conditions like hay fever and asthma.
Asthma symptoms can include a cough, wheezing, chest tightness and breathlessness. Learn more about its causes, symptoms and treatment options.
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.
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.
Inflammation of the skin is commonly termed eczema or dermatitis. It can be effectively managed with treatment – find out how.
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.
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.
Hay fever (allergic rhinitis)
Hay fever (or 'allergic rhinitis') affects up to 1 in 5 Australians at some point in their life. Learn here about the ‘triggers’ and how to manage the...
Hives is a skin rash that is often triggered by an infection or allergy. Learn more about hives rash (urticaria) causes, symptoms and treatment.
Your body's immune system is designed to protect you from, or get rid of, infection. Find out more about how the immune system works.
Exposure to nuts, even in tiny amounts, is a common trigger for a severe allergic reaction. Learn more here about managing nut allergies.
If you have pollen allergy, you may experience hay fever and asthma symptoms. Get tips on how to help manage your exposure to pollen.