Causes of malar rash concern

Overview

A malar rash is a red or purplish rash that appears across the cheeks and bridge of the nose, often shaped like a butterfly. It can be a sign of a medical condition, but not always. Many causes are harmless, like sunburn or rosacea.

Malar rashes are fairly common, especially in people with fair skin. The underlying causes range from very common (like sunburn) to less common (like autoimmune diseases).

It can affect anyone, but certain causes like lupus are more common in women of childbearing age. Malar rash from sun exposure or rosacea can affect people of all ages.

Symptoms

Common symptoms

• A red or purple rash on both cheeks and the bridge of the nose
• The rash may be flat or raised, and may feel warm, itchy, or burning
• It may come and go, and can be triggered by sunlight

Symptoms in children

• Similar appearance to adults, but children may also have fever, joint pain, or swollen glands if the rash is part of an illness

Symptoms in older adults

• The skin may be drier, and the rash may be more persistent
• It can be related to medications or skin conditions like rosacea

Causes

Main causes

• Sun exposure or sunburn
• Rosacea (a common skin condition)
• Systemic lupus erythematosus (an autoimmune disease)
• Dermatomyositis (a rare inflammatory disease)
• Medication reactions
• Viral infections, such as fifth disease (slapped cheek syndrome)

Risk factors

• Family history of autoimmune disease
• Being female (more common in women for lupus)
• Fair skin that burns easily
• Taking certain medications that increase sun sensitivity
• Frequent or intense sun exposure

When to see a doctor

See a doctor urgently if:

• If the rash is accompanied by joint pain, fever, fatigue, mouth sores, or hair loss
• If the rash appears suddenly and is painful or spreading

Book a routine appointment if:

• If you have a mild rash that keeps coming back without other symptoms

Diagnosis

Your doctor will ask about your symptoms and medical history, and examine the rash. They may order blood tests or a skin biopsy to find out the cause.

Tests that may be done

• Blood tests, such as antinuclear antibody (ANA) test
• Complete blood count (CBC)
• Skin biopsy (taking a small sample of skin for testing)

What to expect at your appointment

Your doctor will want to rule out serious causes first, but most malar rashes are not dangerous. You may be referred to a dermatologist or rheumatologist if needed.

Treatment

Treatment depends on the cause. For sun-related rash, sun protection and moisturizers may be enough. For autoimmune causes, medications can control the rash and other symptoms.

Self-care at home

• Avoid direct sunlight, especially between 10 a.m. and 4 p.m.
• Apply a broad-spectrum sunscreen with SPF 30 or higher every day
• Wear a wide-brimmed hat and protective clothing when outdoors
• Use gentle skin products and avoid harsh soaps

Medical treatments

Depending on the cause, your doctor may recommend topical creams (like corticosteroids) to reduce inflammation, or oral medications such as antimalarials or immunosuppressants for autoimmune conditions. Treatment is tailored to your specific needs.

Living with this condition

If you have a chronic cause like lupus, you may need to manage the rash with daily sun protection and medications. Keep a diary to track triggers and flare-ups.

Lifestyle tips

• Wear sunscreen every day, even when it's cloudy
• Avoid tanning beds and excessive sun exposure
• Manage stress, as it can trigger flare-ups in some conditions

Diet and exercise

A balanced diet and regular exercise support overall health. Some people find that anti-inflammatory foods help, but there is no specific diet for malar rash.

Mental health and emotional wellbeing

A visible rash can sometimes cause embarrassment or worry. It's normal to feel that way. Talking to a friend, family member, or counselor can help.

Prevention

You cannot always prevent malar rash, but you can lower your risk by protecting your skin from the sun and avoiding known triggers like harsh skin products.

Vaccines

There are no vaccines specifically for malar rash. However, staying up to date with recommended vaccines helps prevent infections that could trigger a rash.

Screening programmes

There are no routine screening tests for malar rash. If you have a family history of lupus or other autoimmune diseases, talk to your doctor.

Complications

If left untreated

• If caused by an autoimmune disease, untreated inflammation can lead to damage in other organs, such as the kidneys or joints
• If caused by an infection, complications can arise from the infection itself
• Most causes are not dangerous and resolve on their own or with simple treatment

Long-term outlook

Most malar rashes are harmless and go away with time or simple care. Even for more serious causes like lupus, treatment is available and many people lead full, active lives.

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