Eczema

What is Eczema? 

Symptoms 

• Itchy skin is often the most prominent symptom of eczema. It can be severe and persistent, leading to scratching that worsens the condition.

• Red or brownish-gray patches can appear anywhere on the body, but they are most commonly found on the hands, feet, ankles, wrists, neck, upper chest, eyelids, and in the bends of the elbows and knees. In infants, eczema often appears on the scalp and face.

• The affected areas often become dry, cracked, or scaly, which can make the skin more prone to infection.

• Over time, repeated scratching can cause the skin to thicken and become leathery, a condition known as lichenification.

• Small, raised bumps that can sometimes leak fluid when scratched, leading to crusting.

• Inflammation from eczema can cause the affected skin to swell and feel warm to the touch.

Causes 

• If you have a family history of eczema, asthma, or hay fever, you are more likely to develop the condition. Research suggests that eczema is linked to a variation in a gene that affects the skin's ability to provide protection from allergens, irritants, and bacteria.

• Eczema is thought to be an immune system-related condition. In people with eczema, the immune system may overreact to irritants or allergens, causing the symptoms of eczema.

• Environmental factors can trigger or worsen eczema. These include exposure to allergens (like pollen, dust mites, and pet dander), harsh soaps and detergents, stress, and extreme temperatures.

• Eczema sufferers often have a defect in the skin barrier that allows moisture to escape and irritants to enter. This defect can lead to dry, vulnerable skin that is more prone to irritation and inflammation.

Risk Factors

• Living in urban areas with high pollution or cold climates 

• Some studies suggest that females may be slightly more likely to develop eczema than males.

Types of Eczema

• Atopic Dermatitis is the most common and severe form of eczema often occuring in families with a history of allergies or asthma.

• Contact Dermatitis occurs when the skin comes into contact with an irritant or allergen, leading to redness, itching, and inflammation.

• Dyshidrotic Eczema involves the formation of small, itchy blisters on the edges of the fingers, toes, palms, and soles of the feet.

• Nummular Eczema presents as circular, itchy spots that can appear on any part of the body.

• Seborrheic Dermatitis affects areas of the body that are rich in oil-producing glands, such as the scalp and face.

Treatment Options

• Keeping the skin well-moisturized is crucial for managing eczema. Use a thick, fragrance-free moisturizer several times a day, especially after bathing.

• Topical Steroids are often prescribed to reduce inflammation and itchiness. They are usually used for short-term treatment during flare-ups.

• Topical Calcineurin Inhibitors work by suppressing the immune response in the skin, reducing inflammation and preventing flare-ups.

• Antihistamines can help control itching, especially at night.

• Phototherapy, exposure to ultraviolet light under medical supervision can help reduce symptoms in some cases of eczema.

• In severe cases, oral or injectable medications that suppress the immune system may be prescribed.

• Avoiding triggers, wearing soft, breathable clothing, and managing stress can also help reduce flare-ups.

Managing Eczema Flare-Ups

• Identify and avoid triggers.

• Hot water can strip the skin of its natural oils, leading to dryness and irritation. Use lukewarm water and gentle cleansers.

• Dry air can exacerbate eczema. A humidifier can help maintain moisture in the air, especially during winter.

• Cotton clothing is soft and breathable, making it less likely to irritate your skin.