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Dermatitis is a common skin reaction in which the skin becomes red and itchy, sometimes with swelling and a rash. The skin may be dry and flaky, and blisters may occur. Although dermatitis is not an infectious condition, there is a risk of developing an infection from scratching. ‘Eczema’ is often used to describe an atopic skin reaction, and ‘dermatitis’ is usually used to describe the skin reaction caused by irritants or allergens, but the two words are sometimes used interchangeably.
Atopic eczema is common and affects up to 20% of people at some time during their lives. A red, itchy rash commonly occurs in the skin creases, such as behind the elbows or knees. Sometimes the skin may be broken. Although the cause of eczema is not known, there is often a family history of the condition. Many people with eczema also have hayfever and/or asthma. Allergies sometimes play a part, such as reactions to certain foods, dust mites, pollen or animal fur. Eczema may be made worse by irritants such as woollen clothes, perfumes, soaps and chemicals. Stress or changes in the weather can also cause flare-ups (periods of time where the skin becomes more itchy and inflamed than usual). Eczema often follows different patterns depending on the age a person develops it.
Infantile eczema usually starts between 4 and 6 months of age. The baby develops a red rash, which may weep. It appears on the cheeks and may spread to the forehead, scalp and the backs of arms and legs. In severe cases it may involve the whole body. This type of eczema usually disappears between the ages of 3 and 5 years.
Childhood eczema may follow infantile eczema, or it may start for the first time between the ages of 2 and 4 years. It tends to occur in the creases of the elbows, behind the knees, across the ankles and also may involve the face, ears and neck. Childhood eczema usually disappears by the age of 10, but may continue into adulthood.
Adults with eczema usually have large areas of itchy, reddened, weeping skin. The elbow creases, wrists, neck, ankles and behind the knees are areas especially affected. The condition tends to improve in middle life and is unusual in elderly people.
Allergic contact dermatitis
When you touch a substance you are allergic to, your body’s immune system reacts and a rash appears at the point of contact, often your hands. Common substances that cause allergies include hair dye, nickel in jewellery, sticking plasters, latex in rubber gloves, plants and cosmetics. This type of dermatitis usually resolves with avoidance of the allergen.
Irritant contact dermatitis
Irritant substances such as soaps, disinfectants, chemicals, detergents and solvents can remove natural oils from your skin. Repeated contact can make skin red, itchy and dry and lead to scaling, cracking and roughness. Hands are the area most commonly affected.
See Your Pharmacist or Medical Professional
- if the person with dermatitis is a child
- if the skin is broken, weeping or painful or is making you very uncomfortable
- if there are signs of infection, such as pus, swelling, redness or warmth
- if there are any vesicles, which look like small blisters filled with clear fluid
- if the area has white patches or silvery scales
- if the skin has become tough and leathery
- if you have tried treating your skin but it has not improved
- if you are not sure what type of skin problem you have
Tips for atopic dermatitis/eczema
- use a moisturiser or emollient frequently, especially during flare-ups
- patch-test moisturisers or emollients first before extensive use. Take a small amount of product and dab it onto a small area of skin. Wait for a few hours. If no redness or irritation is seen, the product should be safe to use on your skin
- try to avoid scratching; keep fingernails short
- anti-itch products may be helpful, although anti-histamines are generally ineffective for itch associated with atopic dermatitis
- choose a mild soap or soap substitute
- use lukewarm water in baths or showers
- pat your skin dry, do not rub it; then apply a moisturiser or emollient
- choose cotton clothing and bed linen
- use a laundry detergent formulated for sensitive skin, and avoid fabric softeners
- avoid overheating and sudden changes in temperature, as sweating can often increase the itch
Tips for allergic contact dermatitis
- try to identify the substance causing the allergy and avoid it in future
- your doctor can arrange for you to have allergy tests if necessary
- Tips for irritant contact dermatitis
- avoid contact with substances you know irritate your skin
- use a barrier cream or gloves to protect your hands
- use a mild soap or soap substitute to prevent loss of natural skin oils, since normal soap is very drying on the skin
e.g. Aveeno Active Naturals Skin Relief Body Wash, Cetaphil Gentle Cleansing Bar, Cetaphil Gentle Skin Cleanser, DermaVeen Soap-Free Cleansing Bar, DermaVeen Soap Free Wash 5.5 (Cleanser), Eulactol Soap-Free Cleansing Bar, Eulactol Soap-Free Wash for Dry Skin, Eulactol Soap-Free Wash for Normal to Oily Skin, Hamilton Dry Skin Treatment Mild Foam Wash, Hamilton Dry Skin Treatment Wash; aqueous cream, emulsifying ointment
- use these whenever you would use a normal soap
- if you use aqueous cream or emulsifying ointment, you can make a liquid soap substitute by putting a small knob of the cream or ointment in a jar, adding hot water and shaking it
Moisturisers or emollients
e.g. Alpha Keri Lotion, Aveeno Active Naturals Daily Moisturising Lotion, Aveeno Skin Relief Moisturising Cream, Aveeno Active Naturals Skin Relief Moisturising Lotion, Cetaphil Moisturising Cream, Cetaphil Moisturising Lotion, DermaDrate Cracked Heel Treatment, DermaDrate Dry Skin Treatment, DermaVeen Moisturising Lotion, DermaVeen Moisturising Cream, Eulactol Cream for Very Dry Skin, Eulactol Heel Balm, Eulactol Hypo-A Sensitive Skin Moisturiser, Eulactol Moisturising Lotion, Hamilton Dry Skin Treatment Cream, Hamilton Dry Skin Treatment Lip Balm, Hamilton Dry Skin Treatment Lotion, Hydraderm, Macro Natural Vitamin E Cream (lanolin-free), Neutraplus, Neutrogena Norwegian Formula Hand Cream, Oilatum Emollient, Q.V. Cream (lanolin-free), Q.V. Skin Lotion (lanolin-free), Rosken Skin Repair; aqueous cream, emulsifying ointment
- moisturisers add moisture to skin and emollients soften it; many products do both
- these products should be applied frequently
- lotions feel lightest on skin and are suitable for use on the scalp and other hairy areas; they can also be used to treat mild dryness on other parts of your body
- creams are the next lightest type of product; they are usually easily absorbed into your skin and are pleasant to use
- ointments feel much heavier on your skin and many people find them too greasy
- ointments can be useful for thicker or more scaly areas of dry skin, and for use overnight, or on feet
e.g. Silic 15
- barrier creams are useful if you frequently have your hands in water, or if you have contact dermatitis
- they may make your hands slippery
- if applied before getting hands dirty, they make it easier to wash off dirt and stains later
Bath and shower oils
e.g. Alpha Keri Bath Oil, Aveeno Daily Moisturising Body Wash, Aveeno Skin Relief Shower Oil, DermaVeen Colloidal Oatmeal Bath Powder, DermaVeen Shower and Bath Oil, Eulactol Soap-Free Wash for Dry Skin, Eulactol Soap-Free Wash for Normal to Oily Skin, Q.V. Bath Oil (non-slip), Q.V. Flare Up Bath Oil
- these products leave a thin layer of oil on your skin, which helps to hold moisture in
- use no more than the recommended amount
- these products can make the bath or shower slippery
Anti-itch (anti-pruritic) preparations
e.g. Eurax (cream), Pinetarsol Cleansing Bar, Pinetarsol Bath Oil, Q.V. Bath Oil, Sarna Lotion
- Pinetarsol Bath Oil can also be used in the shower
- Pinetarsol Bar is a soap substitute that also contains anti-itching ingredients
- if itching is severe, some types of antihistamine tablets or syrups may help; ask your pharmacist for advice
e.g. ichthammol (Egoderm Cream, Egoderm Ointment [also contains zinc])
- ichthammol reduces inflammation and itching
- can reduce flare-ups associated with eczema
Moderate potency steroids
e.g. clobetasone butyrate 0.05% w/w (Becoderm-C FlareUp, Cortef)
- steroid creams treat inflammation and reduce itching
- do not apply to broken or infected skin
- do not use on your face except on medical advice.
- avoid contact with the eyes
- they can cause permanent thinning of the skin if overused; apply sparingly and do not use more often than recommended
- can use with moisturisers and emollients; wait several minutes between applications
- do not use for longer than one week or in children under 2 years old, except on medical advice
Availability of medicines
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- PHARMACY ONLY available for sale through pharmacies only.
- PHARMACIST ONLY may only be sold by a pharmacist.