Understanding Rashes: Types, Causes, and Treatments

Discover information about rashes, skin conditions characterized by redness, irritation, and itching, and their potential causes.

Rashes FAQ

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What is a skin rash?

A skin rash is generally defined as an area of irritated skin, noted by a change in texture, color, or feeling—for example, itchiness. It can happen due to a variety of different causes. Symptoms might include discoloration, itchiness, pain, swelling, blistering, and flaky or bumpy skin.

What are common skin rashes?

Rashes can have different appearances. They can also appear different on different skin tones. Some common skin rashes and their related symptoms include: Medicine allergy can cause a widespread symmetrical rash with pink or red dots that may join in patches. This rash can occur within 2 weeks of starting a new medicine.

Are rashes a cause for concern?

Fortunately, most rashes are mild and not a cause for concern. You can generally treat a rash with over-the-counter (OTC) remedies. However, there are rashes that a medical professional should look at. These rashes might be a sign of an infection, allergic reaction, or disease.

How do you describe skin rashes?

Skin rashes can be described in the following way: Redness of the skin (called erythema ). Flat abnormally coloured areas of skin (called macules ). Macules are often either red, dark red or purple, brown or white. Solid raised areas which are up to half a centimetre across (called papules ).

Where can I find information about Common rashes?

For information about the symptoms, causes and management of common rashes in adults and children, see the University of Queensland website. You can also call the healthdirect helpline on 1800 022 222 (known as NURSE-ON-CALL in Victoria). A registered nurse is available 24 hours a day, 7 days a week.