Eczema commonly occurs on the backs of the knee where the skin folds. This type of eczema is also referred to as atopic dermatitis and it causes an inflamed and itchy skin rash that appears dry. It is more common in children but can occur at any age. Atopic eczema is a chronic and long-lasting skin condition that typically will go through a cycle of getting better and then flaring up again. It can be irritating but it’s not contagious. People who have atopic dermatitis are more at risk of developing allergies and asthma.
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Symptoms
Atopic dermatitis / eczema on the back of the knee is characterised as a dry, flaky, itchy and inflamed or swollen rash. It can vary in colour depending on skin tone and typically has small, raised bumps, oozing or crustiness. If eczema is not treated, skin may become cracked or open which can result in infection and further complications. Overtime, eczema can thicken the skin, changing the texture.
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Causes
This type of eczema is considered an overreaction of the immune system to well known allergens and irritants such as pollen, dust mites, pet fur and dander, mould, cow’s milk, eggs, wheat, peanuts, soy, wool and synthetic fibres. Hot, cold, humid and dry weather can cause atopic eczema. People can be sensitive to all kinds of weather, but cold and dry conditions are more likely to deplete the moisture in the skin making it dry, a trigger of eczema.
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Treatment
Washing skin daily using a mild and fragrance-free soap will keep the surface of the skin clean. Afterwards, application of a rich emollient while skin is still slightly moist will maintain the moisture balance of skin and help relieve itchy, irritation, and hopefully prevent flare-ups from happening. Treatment may also include medicated ointments or creams containing corticosteroids. Corticosteroids are known as anti-inflammatories and are best used short-term to relieve a flare-up. This condition is best managed by your Nurse Practitioner or Physician.
