Atopic dermatitis

What Is Atopic Dermatitis?

Atopic dermatitis, often used interchangeably with the term eczema, is a chronic inflammatory skin condition marked by dry, itchy, and inflamed patches of skin. It is one of the most common skin conditions worldwide, frequently beginning in early childhood, though it can persist into adulthood or, less commonly, first appear later in life.¹

The condition tends to run in families alongside other allergic conditions, including asthma and hay fever, a pattern researchers refer to as the atopic march. Having one of these conditions raises the likelihood of developing the others, suggesting a shared underlying tendency toward an overactive immune and allergic response.¹

At its core, atopic dermatitis reflects a breakdown in the skin’s ability to function as an effective barrier. A healthy skin barrier keeps moisture in and irritants, allergens, and microbes out. In atopic dermatitis, this barrier becomes compromised, allowing water to escape and outside substances to penetrate more easily, setting off a cycle of inflammation and intense itching.²

The complex interplay among skin barrier deficiency, immunological derangement, and pruritus contributes to the development, progression, and chronicity of atopic dermatitis.
National Center for Biotechnology Information

Symptoms

The hallmark symptom of atopic dermatitis is intense itching, which is often severe enough to disrupt sleep and significantly affect daily quality of life. Scratching in response to this itch frequently worsens the skin’s condition, creating a difficult cycle that can be hard to interrupt without treatment.¹

Affected skin typically appears dry, red, and inflamed, and the specific pattern of involvement tends to shift with age. Infants often develop patches on the face and scalp, while older children and adults more commonly experience symptoms in the creases of the elbows and knees, on the hands, or around the eyes.¹

Over time, chronically scratched or rubbed skin can become thickened and leathery, a change known as lichenification. Periods of active symptoms, called flares, typically alternate with periods of relative calm, and specific triggers, including certain fabrics, soaps, stress, or weather changes, often provoke flares in susceptible individuals.¹

Causes

Atopic dermatitis results from a combination of genetic and environmental factors rather than any single cause. Genetic mutations affecting filaggrin, a protein essential for maintaining the outermost layer of the skin, are among the most well established contributors, since loss of function changes in the filaggrin gene directly weaken the skin’s protective barrier.³

This compromised barrier allows increased water loss from the skin and greater penetration of allergens, irritants, and microbes from the environment, triggering an exaggerated immune response that produces the visible inflammation characteristic of the condition.²

Immune system abnormalities also play a central role, with certain immune signaling pathways, particularly those involving interleukin four and interleukin thirteen, driving much of the inflammation and itch associated with atopic dermatitis. Environmental factors, including exposure to certain allergens, climate, and changes in the skin’s microbial community, further influence disease severity and flare frequency.⁴

Risk Factors

A family history of atopic dermatitis, asthma, or allergic rhinitis substantially raises an individual’s risk, reflecting the strong genetic component underlying the condition and its related allergic disorders.¹

Early childhood represents the period of highest risk for first developing atopic dermatitis, with the large majority of cases beginning before age five, though the condition can persist or recur throughout life in many individuals.¹

Environmental factors, including growing up in urban or industrialized settings, exposure to certain allergens early in life, and living in climates with low humidity, have each been associated with increased risk or severity of atopic dermatitis in various studies, alongside the well established genetic contributors.²

Complications

Because the skin barrier in atopic dermatitis is compromised, affected skin is considerably more vulnerable to infection, particularly from Staphylococcus aureus bacteria, which can colonize eczematous skin more readily than healthy skin and sometimes cause secondary bacterial infections.⁵

Chronic, severe itching and visible skin changes can also take a significant toll on mental health and quality of life, contributing to sleep disruption, reduced self esteem, and, in some patients, symptoms of anxiety or depression, particularly when the condition is poorly controlled over long periods.¹

Long standing atopic dermatitis, particularly with repeated scratching, can lead to lasting skin changes such as lichenification and, in some cases, areas of lighter or darker skin discoloration that persist even after active inflammation has resolved.¹

Treatment

Moisturizing regularly with emollients forms the foundation of atopic dermatitis management, helping to restore and maintain the skin’s compromised barrier function and reduce water loss that contributes to dryness and irritation.¹

Topical corticosteroids remain a mainstay treatment for active flares, reducing inflammation and itching relatively quickly, while topical calcineurin inhibitors offer a steroid free alternative particularly useful for sensitive areas such as the face and skin folds.²

For moderate to severe cases that do not respond adequately to topical treatment alone, biologic medications have transformed available options in recent years. Dupilumab, approved in 2017 as the first biologic specifically for atopic dermatitis, works by blocking signaling through interleukin four and interleukin thirteen, the same immune pathways heavily implicated in driving the underlying inflammation, and is generally well tolerated with side effects such as conjunctivitis reported in some patients.⁶

Prevention

While the genetic tendency toward atopic dermatitis cannot be prevented, consistent daily moisturizing, particularly starting in early infancy for children at high risk, has been shown in some studies to help reduce the likelihood of the condition developing or lessen its severity.¹

Identifying and avoiding individual triggers, whether specific fabrics, soaps, environmental allergens, or stress, can meaningfully reduce flare frequency for many patients once those triggers have been recognized through careful observation over time.¹

For patients on maintenance therapy, consistent adherence to prescribed treatment, even during periods when skin appears clear, helps prevent flares from recurring, and ongoing research into optimal dosing strategies continues to refine how maintenance treatment is best managed over the long term.⁴

Why Visual Communication Matters for Atopic Dermatitis

Explaining why compromised skin barrier function leads to such intense itching, or how a biologic medication targets specific immune signaling molecules to interrupt that cycle, requires visuals that can show processes happening at the cellular level, far beneath what is visible on the skin’s surface.²

Pharmaceutical companies, dermatology practices, and patient advocacy organizations depend on clear illustration and animation to explain the biology behind atopic dermatitis and the growing range of treatments available to manage it.

• Illustrating skin barrier structure and how filaggrin deficiency contributes to atopic dermatitis
• Animating the itch scratch cycle and how it perpetuates skin inflammation
• Explaining the mechanism of action for biologic therapies targeting interleukin four and thirteen
• Visualizing how the atopic march connects eczema, asthma, and allergic rhinitis
• Supporting patient education on trigger identification and daily skin care routines
• Creating training materials for clinicians on treatment selection across disease severity

How Biotic Artlab Supports Atopic Dermatitis Communication

We work with pharmaceutical companies, dermatology practices, and patient advocacy organizations to create accurate, engaging visuals that make the biology of atopic dermatitis and its treatment easier to understand for patients and clinicians alike.

• Custom 3D animations of skin barrier structure and immune signaling pathways
• Detailed illustrations comparing healthy skin with eczematous, inflamed skin
• Mechanism of action animations for topical and biologic therapies
• Patient facing educational materials on trigger avoidance and daily management
• Clinical training content for dermatology and allergy care teams
• Conference presentations and marketing visuals for dermatology audiences

Frequently Asked Questions

Is atopic dermatitis the same as eczema?

The terms are often used interchangeably, though eczema is actually a broader category of inflammatory skin conditions, and atopic dermatitis represents the most common specific type within that category.¹

Can children outgrow atopic dermatitis?

Many children see their symptoms improve or resolve as they get older, though some continue to experience flares into adulthood, and the condition can occasionally first appear later in life even in people without a childhood history.¹

Is atopic dermatitis contagious?

No. Atopic dermatitis is not contagious and cannot be spread through contact with another person, though the affected skin can become secondarily infected with bacteria or viruses that are themselves contagious.⁵

Why do biologic medications like dupilumab work for atopic dermatitis?

Biologics such as dupilumab specifically block immune signaling pathways involving interleukin four and interleukin thirteen, molecules heavily implicated in driving the inflammation and itch central to atopic dermatitis, offering more targeted treatment than broader immune suppressing medications.⁶

What triggers atopic dermatitis flares?

Common triggers include certain fabrics, harsh soaps or detergents, stress, temperature or humidity changes, and exposure to specific allergens, though triggers vary considerably between individuals and often require careful observation to identify.¹

Can moisturizing really help manage atopic dermatitis?

Yes. Regular moisturizing with emollients helps restore the skin’s compromised barrier function, reducing water loss and irritant penetration, and forms a foundational part of management for nearly every patient regardless of disease severity.¹

Have a Project in Mind? Contact Us.

If you are developing patient education materials, clinical training content, or marketing visuals related to atopic dermatitis or dermatological care, our team can help translate the science into visuals that are both accurate and easy to understand. Contact us at info@biotic-artlab.com or get in touch through our contact form to discuss your project.

References

1. National Center for Biotechnology Information. The Etiopathogenesis of Atopic Dermatitis, Barrier Disruption, Immunological Derangement, and Pruritus.
2. National Center for Biotechnology Information. The Immunological and Structural Epidermal Barrier Dysfunction and Skin Microbiome in Atopic Dermatitis, An Update.
3. National Center for Biotechnology Information. Filaggrin Genotype Determines Functional and Molecular Alterations in Skin of Patients With Atopic Dermatitis and Ichthyosis Vulgaris.
4. National Center for Biotechnology Information. A New Era Has Begun, Treatment of Atopic Dermatitis With Biologics.
5. National Center for Biotechnology Information. Case Report, Dupilumab Leads to an Increased Chance of Head and Neck Staphylococcus Aureus Infection in Atopic Dermatitis Patients.
6. National Center for Biotechnology Information. Atopic Dermatitis With Multiple Comorbidities Treated With Dupilumab, A Case Report and Review of the Literature Regarding the Safety of Dupilumab.

Disclaimer: This page provides general educational information and is not a substitute for diagnosis, treatment, emergency care, or individualized advice from a qualified healthcare professional.