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All about eczema types of eczema symptoms of eczema causes of eczema effects of eczema diagnosis of eczema treatments for eczema prevention of eczema treatment of infant or baby eczema atopic eczema treatment dyshidrotic eczema nummular eczema hand eczema (hand dermatitis) varicose eczema seborrhoeic eczema

What types of eczema are there?

There are various types of eczema, with slightly different causes and symptoms. Most are related to allergies or to contact with irritating chemicals. Some are associated with underlying medical conditions that cause fluid retention in the legs.

Atopic eczema (atopic dermatitis) - This type of eczema comes and goes repeatedly, and usually occurs in people who have a genetic (inherited) tendency to have allergies. In about 70 percent of cases, either the patient or a family member has allergic asthma, hay fever or food allergies. Atopic eczema appears early in life, usually in babies between 2 months and 18 months old. In babies, atopic eczema primarily affects the face, neck, ears and torso. It also appears on the tops of feet or the outside surface of elbows. Atopic eczema also is seen in older children, teen-agers and adults, where it usually involves the skin inside the creases of the inward bend of the elbow, knee, ankle, or wrist joints, the hands, or the upper eyelids.

Contact dermatitis - When irritants touch the skin, they can produce two types of contact dermatitis. Irritant contact dermatitis is direct irritation of the skin. The problem is called allergic contact dermatitis when an allergic reaction occurs in the skin. Irritant contact dermatitis can be caused by prolonged contact with mild irritants such as bubble bath, soap, sweat, saliva, urine and even water. Allergic contact dermatitis only occurs in people who have an allergy to a specific substance. Each year, about 70 percent of people in the United States are affected by some type of skin allergy. The most common allergens are poison ivy, poison oak and poison sumac. Other common substances that trigger skin allergies include construction materials used to build homes and offices, cleaning products, deodorants, cosmetics and medications. Dermatitis of the earlobes can be caused by an allergy to earrings that contain nickel. Chemicals in fragrances, skin cream and lotions, shampoos and shoes or clothing also can cause allergic reactions.

Varicose eczema - Varicose eczema affects the lower legs of those in their middle to late years, being caused by poor circulation. Commonly the skin around the ankles is affected, becoming speckled, itchy and inflamed. Treatment is with emollients and steroid creams. If left untreated, the skin can break down, resulting in an ulcer.

Discoid eczema - Discoid eczema affects the arms and legs, usually in middle-aged men. The eczema occurs in numerous round patches. It is usually found in adults and appears suddenly as a few coin shaped areas of red skin, normally on the trunk or lower legs. They become itchy and can weep fluid. Usually discoid eczema is treated with emollients (and steroid creams if necessary).

Hand eczema - This form of chronic eczema is limited to the hands. It can be related to atopic eczema or it can occur because of repeated hand washing or exposure to strong detergents. Occasionally, hand eczema is caused by an allergy, such as a latex allergy.

Nummular eczema - This type of eczema causes round, coin-sized patches of irritated skin, typically on the legs, arms or chest. It usually occurs in adults. It can be related to atopic dermatitis and, less often, allergic contact dermatitis. In a few cases, it represents an allergic reaction to a fungal infection such as athlete's foot. In this case, nummular eczema still appears typically on arms, legs or chest, even if the fungal infection is elsewhere on the body.

Asteatotic eczema - This dry-skin eczema causes fine cracks in the skin, usually first involving the lower legs, where there are fewer oil glands. It commonly occurs in the elderly, especially during winter months spent indoors in a low-humidity environment.

Stasis dermatitis - This type of eczema occurs on the calves, ankles and feet in people who have varicose veins or other conditions that lead to poor blood circulation in the lower legs. Leg swelling leads to itching, fine red bumps, skin darkening and, sometimes, ankle sores.

Lichen simplex chronicus - This form of eczema is a reaction to repeatedly scratching or rubbing the skin in one location. A nervous skin-scratching habit can lead to thickened, discolored skin on the wrist, the ankle, groin or the back of the neck. Skin picking can lead to smaller bump-like areas of the same type of rash called prurigo nodularis.

Seborrheic dermatitis (seborrhea) - Some doctors consider seborrhea to be a type of eczema, although it creates a greasier rash than is usual for eczema conditions. This scaly dermatitis commonly appears on the scalp as "cradle cap" in infants or dandruff in adults. It commonly affects the face or neck around the nose and at the scalp line. It probably is triggered by the skin fungus Pityrosporum ovale.

More information on eczema

What is eczema? - Eczema is a heterogeneous group of different non-infectious skin diseases. Eczema occurs in both children and adults, but usually appears during infancy.
What types of eczema are there? - There are various types of eczema, including atopic eczema (atopic dermatitis), contact dermatitis, varicose eczema, discoid eczema, nummular eczema, stasis dermatitis.
What are the symptoms of eczema? - Symptoms of eczema are itching and redness, and may make the skin dry and flaky. Eczema makes the skin more sensitive.
What causes eczema? - The most common cause of eczema is a general allergic over-sensitivity. Other types of eczema arise as a result of causes within the body.
How does eczema affect people? - In eczema, the main problems occur in the epidermis where the keratinocytes become less tightly held together.
How is eczema diagnosed? - Eczema is usually diagnosed through a physical examination. Further tests may include skin biopsy or patch tests.
What are the treatments for eczema? - Avoidance of the aetiological factors is one important therapeutical approach. Symptomatic treatment includes topical and systemic treatment regimens.
How can eczema be prevented? - Eczema flare-ups can be prevented by avoiding exposure to extreme temperatures, dry air, harsh soaps and bubble baths.
How to deal with infant or baby eczema? - For mild to moderate baby eczema, the application of moisturizer on a regular basis can be very helpful. Avoid as many eczema triggers as possible.
What is atopic eczema and its treatment? - Atopic eczema (atopic dermatitis) is the commonest form of eczema and is closely linked with asthma and hayfever.
What is dyshidrotic eczema? - Dyshidrotic eczema is a form of eczema often seen on the hands and feet where tiny blisters of serum form just below the skin's surface.
What is nummular eczema? - Nummular eczema is a chronic eczema characterised by coin-shaped, sharply demarcated lesions. Nummular eczema is more common in males.
What is hand eczema (hand dermatitis)? - Hand eczema, also called hand dermatitis, is a skin condition in which the hands develop a rash and become red, dry, cracked, and inflamed.
What is varicose eczema? - Varicose eczema is due to increased pressure within the veins in the leg. Varicose eczema affects the lower legs people in their middle to late years.
What's seborrhoeic eczema? - Seborrhoeic eczema is a common skin disease affecting any sebum-(natural oil) producing area of the skin. 
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All information is intended for reference only. Please consult your physician for accurate medical advices and treatment. Copyright 2005, health-cares.net, all rights reserved. Last update: July 18, 2005