Atopic dermatitis (eczema) signs and symptoms vary widely from person to person and include:
- Itching, which may be severe, especially at night
- Red to brownish-gray patches, especially on the hands, feet, ankles, wrists, neck, upper chest, eyelids, inside the bend of the elbows and knees, and, in infants, the face and scalp
- Small, raised bumps, which may leak fluid and crust over when scratched
- Thickened, cracked, dry, scaly skin
- Raw, sensitive, swollen skin from scratching
Atopic dermatitis most often begins before age 5 and may persist into adolescence and adulthood. For some people, it flares periodically and then clears up for a time, even for several years.
Factors that worsen atopic dermatitis
Most people with atopic dermatitis also have Staphylococcus aureus bacteria on their skin. The staph bacteria multiply rapidly when the skin barrier is broken and fluid is present on the skin. This in turn may worsen symptoms, particularly in young children.
Factors that can worsen atopic dermatitis signs and symptoms include:
- Dry skin, which can result from long, hot baths or showers
- Scratching, which causes further skin damage
- Bacteria and viruses
- Changes in heat and humidity
- Solvents, cleaners, soaps and detergents
- Wool in clothing, blankets and carpets
- Dust and pollen
- Tobacco smoke and air pollution
- Eggs, milk, peanuts, soybeans, fish and wheat, in infants and children
Atopic dermatitis is related to allergies. But eliminating allergens is rarely helpful in clearing the condition. Occasionally, items that trap dust — such as feather pillows, down comforters, mattresses, carpeting and drapes — can worsen the condition.
When to see a doctor
See your doctor if:
- You're so uncomfortable that you are losing sleep or are distracted from your daily routines
- Your skin is painful
- You suspect your skin is infected (red streaks, pus, yellow scabs)
- You've tried self-care steps without success
- You think the condition is affecting your eyes or vision
Take your child to the doctor if you notice these signs and symptoms in your child or if you suspect your child has atopic dermatitis.
Seek immediate medical attention for your child if the rash looks infected and he or she has a fever.
The exact cause of atopic dermatitis (eczema) is unknown. Healthy skin helps retain moisture and protects you from bacteria, irritants and allergens. Eczema is likely related to a mix of factors:
- Dry, irritable skin, which reduces the skin's ability to be an effective barrier
- A gene variation that affects the skin's barrier function
- Immune system dysfunction
- Bacteria, such as Staphylococcus aureus, on the skin that creates a film that blocks sweat glands
- Environmental conditions
Factors that put people at increased risk of developing the condition include:
- A personal or family history of eczema, allergies, hay fever or asthma
- Being a health care worker, which is linked to hand dermatitis
Risk factors for children include:
- Living in urban areas
- Being African-American
- Having parents with a high level of education
- Attending child care
- Having attention-deficit/hyperactivity disorder (ADHD)
Complications of atopic dermatitis (eczema) include:
- Asthma and hayfever. Eczema sometimes precedes these conditions.
- Chronic itchy, scaly skin. A skin condition called neurodermatitis (lichen simplex chronicus) starts with a patch of itchy skin. You scratch the area, which makes it even itchier. Eventually, you may scratch simply out of habit. This condition can cause the affected skin to become discolored, thick and leathery.
- Skin infections. Repeated scratching that breaks the skin can cause open sores and cracks. These increase your risk of infection from bacteria and viruses, including the herpes simplex virus.
- Eye problems. Signs and symptoms of eye complications include severe itching around the eyelids, eye watering, inflammation of the eyelid (blepharitis) and inflammation of the eyelid (conjunctivitis).
- Irritant hand dermatitis. This especially affects people whose work requires that their hands are often wet and exposed to harsh soaps, detergents and disinfectants.
- Allergic contact dermatitis. This condition is common in patients with atopic dermatitis. Many substances can cause an allergic skin reaction, including corticosteroids, drugs often used to treat people with atopic dermatitis.
- Sleep problems. The itch-scratch cycle can cause you to awaken repeatedly and decrease the quality of your sleep.
- Behavioral problems. Studies show a link between atopic dermatitis and attention-deficit/hyperactivity disorder, especially if a child is also losing sleep.
The following tips may help prevent bouts of dermatitis (flares) and minimize the drying effects of bathing:
- Try to identify and avoid triggers that worsen the inflammation. Reduce your exposure to your unique triggers.
- Take shorter baths or showers. Limit your baths and showers to 10 to 15 minutes. And use warm, rather than hot, water. Bath oil also may be helpful.
- Use only gentle soaps. Choose mild soaps that clean without removing too many natural oils. Deodorant and antibacterial soaps may be more drying to your skin. Use soap only on your face, underarms, genital areas, hands and feet. Use clear water elsewhere.
- Dry yourself carefully. After bathing, brush your skin rapidly with the palms of your hands, or gently pat your skin dry with a soft towel and apply moisturizer.
- Moisturize your skin at least twice a day. Creams or lotions seal in moisture. Thicker moisturizers work best — such as Cetaphil, Nutraderm and Eucerin. You may also want to use cosmetics that contain moisturizers. If your skin is extremely dry, try applying baby oil or a similar product while your skin is still moist. Oil has more staying power than moisturizers do.