Eczema, also called atopic dermatitis, is a chronic inflammatory skin condition that causes patches of dry, itchy, red, or discolored skin that can flare up and then settle down over weeks or months. It’s most common in children but can start or persist at any age, and it tends to run in families alongside other allergic conditions like asthma and hay fever. Eczema isn’t curable, but most people can manage symptoms well and reduce flare frequency with the right combination of skincare and, when needed, prescription treatment.
This guide covers what eczema looks and feels like, the different types, what triggers flare-ups, and the treatment options that dermatologists actually recommend, from daily moisturizing to prescription medication.
What Is Eczema?
Eczema is an umbrella term for a group of conditions that cause inflamed, itchy skin, with atopic dermatitis being the most common form. It develops from a combination of a genetically weaker skin barrier — meaning skin loses moisture more easily and lets in irritants and allergens more readily — and an overactive immune response that produces the redness, itching, and inflammation. It’s a chronic condition, meaning it tends to come and go in flares rather than resolving permanently, though severity and frequency often improve with age and consistent management.
Common Eczema Symptoms
- Dry, sensitive skin that feels rough or scaly, often the first noticeable sign before a flare
- Intense itching, which is often the most disruptive symptom and can worsen at night
- Red to brownish-gray patches, commonly on the hands, feet, ankles, wrists, neck, upper chest, eyelids, and inside the elbows and knees
- Small raised bumps that may leak fluid and crust over when scratched
- Thickened, cracked, or scaly skin from long-term scratching or rubbing (a pattern called lichenification)
- Raw, sensitive skin after scratching, which increases the risk of infection
Symptoms typically start before age 5 in people who develop childhood eczema, and the appearance can shift with age — infants often show it on the face and scalp, while older children and adults more commonly see it in skin creases like the elbows and knees.
Types of Eczema
“Eczema” covers several related but distinct conditions:
- Atopic dermatitis — the most common and chronic form, linked to genetics and immune function, often alongside asthma or allergies
- Contact dermatitis — triggered by direct contact with an irritant or allergen rather than an internal immune tendency; see our contact dermatitis symptoms guide for how to tell them apart
- Dyshidrotic eczema — causes small, intensely itchy blisters, usually on the hands and feet
- Nummular eczema — produces distinct coin-shaped patches, often on the arms and legs
- Seborrheic dermatitis — affects oil-gland-rich areas like the scalp and face; covered in more detail in our seborrheic dermatitis guide
What Causes Eczema Flare-Ups?
Eczema itself stems from genetics and immune function, but individual flares are usually set off by specific triggers, including dry air and low humidity, which pulls moisture from an already compromised skin barrier, harsh soaps, fragrances, and detergents, which strip natural oils and irritate the skin, sweat and overheating, a common trigger during exercise or hot weather, certain fabrics, particularly wool and rough synthetic materials, stress, which can worsen inflammation through immune and hormonal pathways, allergens such as dust mites, pet dander, or pollen, and some foods, which trigger flares in a subset of people, especially children, though this varies significantly by individual.
How Is Eczema Diagnosed?
Eczema is typically diagnosed through a physical exam and a review of personal and family history of allergies, asthma, or eczema, since there’s no single definitive lab test. A dermatologist may also use patch testing to rule out contact dermatitis, or occasionally a skin biopsy if the diagnosis is unclear or symptoms don’t respond to typical treatment as expected.
Eczema Treatment Options
- Daily moisturizing with thick, fragrance-free creams or ointments, applied right after bathing to lock in moisture — often the single most important daily habit
- Topical corticosteroids, prescribed in varying strengths to reduce inflammation during flares, typically used short-term on affected areas
- Topical calcineurin inhibitors (like tacrolimus or pimecrolimus), non-steroid options often used on sensitive areas like the face and eyelids or for longer-term maintenance
- Antihistamines, which can help with itching, particularly at night, though they don’t treat the underlying inflammation
- Wet wrap therapy, where damp bandages are applied over moisturizer or medication to boost absorption and calm severe flares
- Phototherapy, controlled UV light treatment used for moderate-to-severe eczema that hasn’t responded well to topical treatment
- Biologic medications (like dupilumab) or oral immunosuppressants, reserved for moderate-to-severe cases that don’t respond to other treatments, prescribed and monitored by a dermatologist
At-Home Care and Prevention Tips
- Take shorter, lukewarm (not hot) showers or baths, and moisturize within a few minutes of drying off
- Choose fragrance-free, dye-free cleansers and laundry detergents
- Use a humidifier in dry indoor air, especially during winter
- Keep nails trimmed short to limit skin damage from scratching
- Wear soft, breathable fabrics like cotton and avoid wool directly on skin
- Identify and track personal triggers with a symptom diary, since these vary widely between individuals
When to See a Dermatologist
It’s worth seeing a dermatologist if eczema is widespread, disrupting sleep, not improving with over-the-counter moisturizers and gentle skincare, or showing signs of infection such as increasing redness, warmth, swelling, or pus. A dermatologist can also help identify triggers, prescribe appropriate topical or systemic treatment, and rule out other conditions like psoriasis or contact dermatitis that can look similar.
Frequently Asked Questions
Is eczema contagious?
No, eczema is not contagious. It cannot be spread through skin contact and results from a combination of genetics and immune system function rather than an infectious cause.
Can eczema be cured?
There’s currently no permanent cure for eczema, but it can usually be well controlled with consistent moisturizing, trigger avoidance, and treatment when needed. Many people, especially children, also see symptoms improve significantly or resolve with age.
What’s the difference between eczema and psoriasis?
Eczema tends to cause more intense itching and appears in skin creases, while psoriasis typically produces thicker, more defined silvery-scaled patches, often on the elbows, knees, and scalp. See our psoriasis vs eczema comparison for a full breakdown.
What is the best moisturizer for eczema?
Thick creams and ointments (rather than thin lotions) that are fragrance-free and contain ingredients like ceramides, colloidal oatmeal, or petrolatum are generally best tolerated, since they support the skin barrier without added irritants.
Can diet affect eczema?
For some people, particularly children with more severe eczema, certain foods can trigger flares, but this isn’t universal. Elimination diets should generally be guided by a doctor or allergist rather than attempted on your own, to avoid unnecessary restriction.
Does eczema go away with age?
Many children with atopic dermatitis see symptoms improve or resolve by adolescence, though some continue to have flares into adulthood, and eczema can also first appear later in life.
Is eczema an autoimmune disease?
Eczema is generally classified as an inflammatory, immune-mediated condition rather than a classic autoimmune disease, since it involves an overactive immune response to environmental triggers combined with a genetically weaker skin barrier, rather than the immune system attacking the body’s own tissue.
Can stress trigger eczema flare-ups?
Yes, stress is a commonly reported trigger, likely through its effects on inflammation and immune function, which is why stress management is sometimes included as part of a broader eczema management plan.
Related Reading
- Psoriasis vs eczema: key differences and how to tell them apart
- Contact dermatitis symptoms: causes, types, and treatment
- Dry skin causes and remedies: home care guide
- Gut-skin connection: how digestion affects your skin
Informational only — not medical advice. See a dermatologist for diagnosis and a treatment plan tailored to your skin, especially for widespread, severe, or infected eczema.