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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Antibiotics

Antibiotics revolutionised medicine in the 1940s because they treated infections caused by bacteria. Learn how antibiotics work and what they do and don’t treat.

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Penicillin

Penicillin is the name given to a widely-used group of antibiotic drugs. Penicillin can have side-effects, and some people suffer allergic reactions. Find out more 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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Antibiotic resistance

Here’s important information about what antibiotics treat and don’t treat, an explanation of 'superbugs' and how antibiotic resistance can be reduced.

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Antibiotic-resistant gonorrhoea has increased

Cases of gonorrhoea have risen in Australia, and many people don't know they have it. But this STI can cause infertility if left untreated.

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Differences between bacterial and viral infection

Bacterial and viral infections must be treated differently. Misusing antibiotics to treat viral infections leads to the problem of antibiotic resistance.

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Leprosy

Leprosy, also known as Hansen’s disease, is an infection of the skin and nerves. It is rare in Australia and can be easily treated and cured with antibiotics.

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Doxycycline

Doxycycline is an antibiotic medicine. This page explains what doxycycline is used for, how it works, its risks and other treatment options available in its place.

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Syphilis treatment

Syphilis is treated with antibiotics. The length of treatment will vary depending on the stage of syphilis you may have. Learn more about syphilis treatment.

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Gastritis treatment

Treatment of gastritis depends on its causes, but can include antibiotics and antacids. You may be advised to alter your diet. You can find out more about treatments for gastritis by reading information from our trusted partner sources.

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Stomach ulcers

Stomach ulcers occur in the lining of your stomach. Although they are common and can be treated, it’s important to be aware of the symptoms and get diagnosed early.

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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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Hives

Hives is a skin rash that is often triggered by an infection or allergy. Learn to recognise symptoms.

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Antihistamines

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

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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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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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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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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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How to use an adrenaline autoinjector (EpiPen)

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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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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