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Antibiotics don't affect viruses
Common colds, flu and most coughs are caused by viruses and get better on their own. Antibiotics work only on infections caused by bacteria and have no effect on viruses. Your immune system can fight and overcome these viruses.
Antibiotics...
won't help a cold get better faster
won't stop a cold from getting worse
won't stop a cold spreading to other people.
Using antibiotics when they are not needed may make them less effective when they are needed. They can cause unwanted side effects like stomach upsets, diarrhoea, thrush and allergic reactions.
Some special cases
Some ear and throat infections may be caused by either viruses or bacteria, but most will get better on their own. Discuss managing pain relief with your pharmacist or doctor. Complications are rare.
Research shows that Aboriginal and Torres Strait Islander people are much more likely to develop complications (e.g. pneumonia and ear damage) from respiratory tract infections. These may involve bacterial infections so antibiotics may be needed more often.
Date published: 2011-07-08 00:00:00
Reasonable care is taken to provide accurate information at the date of creation. This information is not intended as a substitute for medical advice from a qualified health professional. Health professionals should rely on their own expertise and enquiries when providing medical advice or treatment. Where permitted by law, NPS disclaims all liability (including for negligence) for any loss, damage or injury resulting from reliance on or use of this information. Read our full disclaimer.
References to brands should not be taken as an endorsement by NPS.
