Eczema (atopic dermatitis) is best understood as a condition driven by interconnected cycles, not just dry skin alone. Experts often describe eczema through five “pillars”: skin barrier, inflammation, microbiome, mind–body factors, and nerves/itch. 

These pillars explain why eczema can look different from person to person, and why treating only one piece often does not lead to lasting control. 

Eczema Is Not One-Size-Fits-All 

Atopic dermatitis is not a single, simple condition. People can have different triggers, different rash patterns, and even different underlying biology. 

Research suggests that atopic dermatitis includes multiple subtypes (varying by age of onset, triggers, distribution, and associated allergies) and likely multiple underlying mechanisms. 

Because clinicians cannot yet neatly separate all subtypes in everyday practice, patients are grouped under the umbrella of “atopic dermatitis,” and treatment is then individualized based on severity, age, body sites, triggers, and response. 

Pillar 1: Skin Barrier (“Leaky Skin”) 

A helpful way to picture the skin barrier is as a brick wall. Skin cells are the bricks, and specialized fats and proteins (such as ceramides and filaggrin) act as the mortar. 

In eczema, this wall becomes cracked and leaky: 

Behind the Science:  

Many patients carry loss-of-function mutations in the filaggrin (FLG) gene, which is critical for:  

Barrier defects can lead to: 

In babies, higher TEWL early in life can predict who is more likely to go on to develop eczema later, which tells us: in many cases, barrier trouble comes first, and inflammation follows.  

 What Supports the Barrier: 

Core barrier-support strategies include: 

Together, these steps strengthen and protect the skin barrier, helping to lock in moisture, reduce irritation, and support long-term skin health. 

 Pillar 2: Inflammation (The Overactive Immune Response) 

Eczema is also an inflammatory condition, meaning the immune system is more “on edge” than it should be. Eczema is driven by chronic immune activation, especially type 2 (Th2‑skewed) inflammation. They release signals that cause redness, swelling, and more barrier damage.   

When eczema flares, the body releases immune signals that lead to: 

This creates a frustrating positive feedback loop: inflammation weakens the barrier, and thus, this weakened barrier leads to an increase in inflammation. Think of it like a smoke alarm that is too sensitive. It keeps going off even when there is no real danger. In eczema, the immune system stays on high alert and continues to send inflammatory signals into the skin. 

Behind the Science:  

In people with eczema: 

This is why eczema skin can look visibly red and feel hot, irritated, and uncomfortable during flares. 

What Helps Calm Inflammation: 

Because inflammation is such a central driver of eczema, treatment often includes targeted anti-inflammatory support. 

Common approaches include: 

When inflammation is properly controlled, the skin barrier can finally begin to repair, and the skin often feels calmer, less itchy, and more resilient.

Pillar 3: The Skin Microbiome 

Your skin is home to a whole community of bacteria, fungi, and other microbes that usually help protect you. In eczema, this community becomes unbalanced, a state called dysbiosis. 

Behind the Science:  

One bacterium in particular, Staphylococcus aureus (often just called “staph”), tends to overgrow on eczema skin. When it takes over, it can release toxins and enzymes that irritate the skin, drive more inflammation, and worsen flares. That’s why some people notice yellow crusting or more oozing during bad flares.  

Patients with atopic dermatitis often have: 

S. aureus can:

Beyond the skin’s surface, there is also a growing interest in the “gut-skin axis”: two‑way communication between gut microbes and the immune and barrier systems in the skin. In simple terms, the bacteria living in your gut and the health of your skin are linked and constantly “talk” to each other through the immune system. When you eat fiber-rich foods (like fruits, vegetables, beans, and whole grains), your gut bacteria break that fiber down into helpful compounds called short-chain fatty acids (SCFAs).  

SCFAs compounds can: 

Studies have found that people with more severe eczema often have lower levels of these helpful compounds. Early research also suggests that diets higher in plant fiber, which feed these good gut bacteria, may support better skin health. 

What Supports Microbial Balance 

When guided by a clinician, helpful strategies to support the microbiome include:

Protecting beneficial microbes is just as important as reducing harmful overgrowth. 

Pillar 4: Mind, Sleep, & Stress 

 Eczema affects the whole person. Itch that wakes you at night, embarrassment about visible patches, and the stress of constant care can wear people down emotionally. Poor sleep alone can make everything feel harder: more irritability, more anxiety, more difficulty coping with the itch. 

Behind the Science: 

Many patients report poor sleep, daytime fatigue, and reduced quality of life due to continuous itch, nighttime scratching, and worries about appearance. Sleep disturbances are common in atopic dermatitis and often worsen as disease severity increases.

Psychological stress can:

In turn, uncontrolled eczema and sleep loss heighten stress, anxiety, and sometimes depression, creating a reinforcing loop. 

What Supports the Mind–Skin Connection: 

Stress doesn’t “cause” eczema out of nowhere, but it can absolutely make it worse. When you’re stressed, the body releases chemicals that can increase inflammation and itch, and you may find yourself scratching more without even noticing. That’s why good eczema care often includes: 

Mind–body therapies focus on how thoughts, emotions, and behaviors interact with itch, pain, and stress in eczema. They don’t replace creams or medicines, but they can make it easier to live with eczema and stick with treatment. Below are some approaches that research suggests may help. 

Mindfulness and related therapies are not one‑size‑fits‑all, but for many, these tools become an important part of the “mind–body pillar” alongside medical treatment. 

Pillar 5: The Itch–Scratch Cycle 

One of the most challenging features of eczema is the itch–scratch cycle. Over time, nerve endings in the skin become hypersensitive, and certain immune signals amplify itch. Even light touch, heat, or sweat can feel unbearably itchy. 

Behind the Science:  

When you scratch, you might get a few seconds of relief, but you also: 

What Helps Break the Cycle: 

This is the classic itch-scratch cycle. Breaking that cycle is a huge part of eczema care. That might mean: 

For children, distraction (games, stories, fidget toys) and “replacement behaviors” (squeezing a stress ball instead of scratching) can be very helpful. 

What Does “Remission” in Eczema Really Mean? 

Rather than an on/off switch, it can help to picture a spectrum:  

Remission is when eczema stays quiet even as treatment is reduced or stopped:  

For everyday life, focus on:  

Understanding these terms helps guide your care. If control is poor, adjust treatment. If control is stable, discuss tapering. If skin has been quiet for a while, explore a gradual reduction plan with your clinician. 

Bridging the Five Pillars Together 

If you only treat one pillar, the others can keep pulling you back into a flare. For example, if you use a strong anti‑inflammatory cream but never moisturize, your barrier may stay fragile and easily re‑triggered. If you moisturize well but ignore sleep, stress, or staph overgrowth, itch and flares may continue. 

A more complete eczema plan usually touches all five pillars in some way: 

You don’t have to fix everything overnight, and you don’t have to do it alone. Understanding these five pillars can help you ask better questions, recognize why your doctor recommends certain steps, and build a plan that feels more logical and hopeful.