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RELATED PAGES Eczema, or dermatitis as it is sometimes called, is a group of skin conditions which can affect all age groups. In the United Kingdom, up to one fifth of all children of school age have eczema, along with about one in twelve of the adult population. The severity of the disease can vary. In mild forms the skin is dry, hot and itchy, whilst in more severe forms the skin can become broken, raw and bleeding. Although it can sometimes look unpleasant, eczema is not contagious. With treatment the inflammation of eczema can be reduced, though the skin will always be sensitive to flare-ups and need extra care.
The causes of eczema are many and varied, and depend on the particular type of eczema that a person has. Atopic eczema is thought to be a hereditary condition, being genetically linked. It is proposed that people with atopic eczema are sensitive to allergens in the environment which are harmless to others. In atopy there is an excessive reaction by the immune system producing inflamed, irritated and sore skin. Associated atopic conditions include asthma and hayfever. Other types of eczema are caused by irritants such as chemicals and detergents, allergens such as nickel, and yeast growths. In later years eczema can be caused by a blood circulatory problems in the legs. The causes of certain types of eczema remain to be explained, though links with environmental factors and stress are being explored.
There are several different types of eczema, many of which look similar but have very different causes and treatments. The first step in effective treatment of eczema is a correct diagnosis. It is very important to see a general practitioner in the first instance, who may make a referral to a specialist dermatologist for further diagnosis and treatment. Atopic eczema: - Atopic eczema is the commonest form of eczema and is closely linked with asthma and hayfever. It can affect both children and adults, usually running in families. One of the most common symptoms of atopic eczema is its itchiness (or pruritis), which can be almost unbearable. Other symptoms include overall dryness of the skin, redness and inflammation. Constant scratching can also cause the skin to split, leaving it prone to infection. In infected eczema the skin may crack and weep (‘wet’ eczema). Treatments include emollients to maintain skin hydration and steroids to reduce inflammation. Allergic contact dermatitis: - Develops when the body’s immune system reacts against a substance in contact with the skin. The allergic reaction often develops over a period of time through repeated contact with the substance. For example, an allergic reaction may occur to nickel, which is often found in earrings, belt buckles and jeans buttons. Reactions can also occur after contact with other substances such as perfumes and rubber. In order to prevent repeated reactions it is best to prevent contact with anything that you know causes a rash. Irritant contact dermatitis: - This is a type of eczema caused by frequent contact with everyday substances, such as detergents and chemicals, which are irritating to the skin. It most commonly occurs on the hands of adults and can be prevented by avoiding the irritants and keeping the skin moisturised. Infantile seborrhoeic eczema: - A common condition affecting babies under one year old, the exact cause of which is unknown. Also referred to as cradle cap, it usually starts on the scalp or the nappy area and quickly spreads. Although this type of eczema looks unpleasant, it is not sore or itchy and does not cause the baby to feel uncomfortable or unwell. Normally this type of eczema will clear in just a few months, though the use of moisturising creams and bath oils can help to speed this along. Adult seborrhoeic eczema: - Characteristically affects adults between the ages of 20 and 40. It is usually seen on the scalp as mild dandruff, but can spread to the face, ears and chest. The skin becomes red, inflamed and starts to flake. The condition is believed to be caused by a yeast growth. If the condition becomes infected, treatment with an anti-fungal cream may be necessary. 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: - 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).
There is currently no cure for
eczema though research continues to shed new light on the condition.
However, there are many ways to minimise the discomfort and distress which
eczema can bring, the foundation of which is an effective skin care
routine. A wide range of treatments is available, either over the counter
at the pharmacy, or on prescription from a doctor. Many complementary
therapies are available, which some people find helpful. In addition,
there are ways of minimising environmental allergens commonly found in the
home. There are a number of ways to manage eczema, all of which begin with an effective skin care routine. Having access to accurate information is important as this allows the person with eczema, or their carer, to make informed choices when managing the condition. The following are the more commonly used treatments. Further information on any of these can be obtained through the National Eczema Society. Emollients: - Emollients are necessary to reduce water loss from the skin, preventing the dryness normally associated with eczema. By providing a seal or barrier, the skin is less dry, itchy and more comfortable. Emollients are safe to use as often as is necessary and are available in various forms: ointments for very dry skin, creams and lotions for mild to moderate or ‘wet’ eczema and gels for eczema under hair. Some are applied directly to the skin, whilst others are used as soap substitutes or can be added to the bath. The range of emollients available is enormous and it may be necessary to try several before the most suitable one is found. Testing a small amount on the skin first is advisable, as emollients contain substances to which some people are sensitive. Topical steroids: - When eczema is under control only emollients need to be used. However in flare-ups, when the skin becomes inflamed, a steroid cream may be needed. Steroids act by reducing inflammation and are used in most types of eczema. Topical steroids come in four different strengths, mild, moderately potent, potent and very potent. The strength of steroid cream that a doctor prescribes depends on the age of the patient, the severity of the condition and, the size of the area and part of the body to be treated. Topical steroids are applied thinly to the affected area, as directed by the prescribing doctor. Your eczema should be reviewed regularly if topical steroids are being applied. It is important to use only the steroid cream prescribed for yourself and not to lend or borrow (what may be) an unsuitable cream from someone else. Many people have concerns regarding the use of topical steroids and their side-effects. As long as steroids are used appropriately and as directed by your doctor, the likelihood of side effects is very rare. Reported side-effects have been largely due to the use of very potent steroid preparations over long periods of time. Oral steroids: - are sometimes prescribed in very severe cases and usually under the direction of a consultant dermatologist, when topical steroids have been found to be ineffective. These can have possible side-effects and the doctor should ensure close monitoring when prescribed. Other treatments: - that your doctor may discuss are anti-histamines to reduce inflammation and wet wrap bandaging to soothe dry itchy skin. Ultra Violet light treatment and stronger medication may be considered for very severe eczema.
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