Could That Persistent Rash Be Psoriasis? Understanding the Signs 

A rash that keeps coming back can be frustrating, particularly when moisturisers or changes to your skincare routine do not seem to explain why it is there.

While many skin conditions can cause redness, scaling or irritation, psoriasis has some features that may help distinguish it from other common conditions.

It is a chronic inflammatory skin condition that can affect different areas of the body, including the elbows, knees, scalp, nails and skin folds. It is not contagious, but its appearance and symptoms can vary considerably between people.

So, if a persistent rash has you wondering what is behind it, what should you look for?

What Are the Common Signs of Psoriasis?

One of the more recognisable features is a raised, well-defined area of inflamed skin covered with a silvery scale. These areas are often referred to as plaques and commonly appear on the elbows, knees and lower back.

However, not every person develops the same pattern. The location, appearance and extent of the affected skin can differ, which is one reason a persistent rash should not automatically be assumed to have a particular cause.

Other signs may include:

• Scaly or flaky patches of skin
• Areas of redness or inflammation
• Changes affecting the scalp
• Skin changes around the nails
• Symptoms involving the palms or soles
• Joint symptoms in some people

The psoriasis symptoms a person experiences can also change over time. Certain factors, including infections, stress, smoking and significant sun exposure, may contribute to flare-ups or worsening symptoms in some people.

Not Every Case Looks the Same

There is more than one presentation of the condition. Understanding the types of psoriasis can help explain why one person’s symptoms may look quite different from another’s.

For example, chronic plaque psoriasis can cause larger areas of raised, scaly skin, while guttate psoriasis may appear as smaller, teardrop-shaped spots. Some forms mainly affect skin folds, while scalp psoriasis can be concentrated around the scalp. There are also forms that affect the palms and soles, as well as less common presentations that require more urgent medical attention.

This variation can make self-diagnosis difficult. A rash that looks similar to psoriasis may have another cause, including eczema or dermatitis. Quayside Specialists also provide assessment and treatment for these conditions, which can present with overlapping symptoms.

How Is Psoriasis Assessed and Treated?

There is no single approach that suits every person. At Quayside Specialists, dermatologists consider factors such as the extent and severity of the condition, along with individual circumstances, when considering management options. 

Depending on the presentation, psoriasis treatment may include prescribed topical medicines such as corticosteroids or calcineurin inhibitors. Phototherapy may also be considered for some localised or more widespread cases. Other treatment options, including biologic medicines, may be appropriate for some people who meet specific eligibility requirements.

Treatment also involves considering potential risks, triggers and how the condition is affecting the individual. Prescribed medicines should be used according to the directions provided by the treating doctor, with follow-up where appropriate.

If you are looking for a dermatologist Sydney patients can see for ongoing skin concerns, Quayside Specialists provides specialist dermatology services from its Sydney CBD clinic.

When Should You Have a Persistent Rash Checked?

A rash does not necessarily mean you have psoriasis. However, if an unexplained skin change persists, repeatedly returns or is accompanied by other symptoms, it may be worth having it assessed rather than continuing to treat it based only on appearance.

A dermatologist can consider the pattern, location and characteristics of the affected skin alongside your medical history. This can help determine whether the changes are consistent with psoriasis or whether another skin condition needs to be considered.

At Quayside Specialists in Sydney, dermatology consultations can be used to discuss ongoing skin concerns and available management options.

To make an enquiry or book an appointment, contact Quayside Specialists on 1300 911 151 or email [email protected].