Rashes are marks or lesions (changes) to the skin. There are many different types of rashes. They can appear anywhere on the body and may be localised or widespread.
Rashes can be red, pink or purple. They may be flat or bumpy, itchy, dry, scaly, spidery or pus-filled. Rashes can last for days or weeks.
Most rashes are harmless and go away without treatment. Some rashes are more serious and need to be checked and treated by your doctor.
Rashes have many causes. They can be caused by:
In children, most rashes are caused by common viral infections.
Rashes can look different from each other. They can also look different on different skin tones.
Common skin rashes and their related symptoms include:
Read more about heat rash and summer skin rashes.
If you think you or someone you know is experiencing anaphylaxis, use the adrenaline autoinjector immediately. Then call triple zero (000) and ask for an ambulance. Follow an ASCIA allergy action plan, if you have one.
If you have a rash and symptoms like difficulty breathing, wheezing, swelling of the tongue and throat, dizziness or collapse, you may have an allergic reaction. If you or someone else is having these symptoms, call triple zero (000) and ask for an ambulance.
See your doctor urgently if your child has a fever and rash at the same time. Also see your doctor urgently if you think your child may have meningococcal disease or measles.
You should also see a doctor if you have a rash that is not getting better by itself, is spreading or is getting worse. Persistent rashes may need treatment or further tests.
Read more on serious childhood rashes (Opens in new tab) and common childhood rashes (Opens in new tab).
Measles rash
Meningococcal rash
Seek immediate medical care if the rash happens suddenly and is accompanied by symptoms such as:
These signs may point to a serious illness that needs immediate care.
If you or someone you know has a rash of small, bright red or purple spots or bruises that do not turn white when pressed, along with a fever, headache, stiff neck or back pain. They may have a meningococcal infection— call triple zero (000) and ask for an ambulance.
Treatment depends on the cause and severity of your rash. Most rashes in children are viral rashes and settle without treatment.
Other rashes may need medical treatment. Your doctor may suggest:
Read more on questions to ask before taking a medicine.
Many mild rashes can be managed at home.
Here are tips that may help ease your symptoms while the rash settles:
Most rashes settle without ongoing problems. Complications are more likely if your rash is caused by an infection, allergic reaction or an inflammatory skin condition.
Scratching can lead to skin infections. Signs may include:
Medical treatment may be needed to prevent the infection from spreading.
Long-lasting or severe rashes may also cause:
Some rashes linked to infections, such as meningococcal disease or measles, can become life-threatening without urgent care.
Some rashes can be prevented. If you have eczema, you can prevent flares by regular moisturising and avoiding triggers such as:
Avoiding the substance that caused contact dermatitis can prevent repeat reactions.
Other types of rashes, like those caused by viruses or problems with the immune system, cannot be prevented.
Resources and support for parents and carers of children include:
Resources and support for adults include:
You can also call the healthdirect helpline on 1800 022 222 (known as NURSE-ON-CALL in Victoria). A registered nurse is available to speak with you 24 hours a day, 7 days a week.
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Last reviewed: December 2025
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