Eczema Unravelled: Causes, Effects, and Treatment Options

Eczema is a common skin condition that raises concerns, particularly regarding its potential exacerbation in Hong Kong’s humid climate. Interestingly, moderate humidity can actually benefit the condition by reducing skin dryness, a well-known trigger for eczema. However, it is important to note that humid environments can also promote the growth of mites—microscopic insects that can bite and irritate the skin, potentially aggravating eczema symptoms. Additionally, factors such as stress, exposure to chemicals, and extreme weather conditions (both hot and cold) can influence the severity of eczema. Therefore, it is essential to consider a combination of factors rather than focusing on a single cause.

We understand the frustration that eczema can bring, and we have created a comprehensive informational guide to help you navigate this condition effectively.

Common Types of Eczema

Eczema manifests in various forms, each with distinct characteristics and triggers. Identifying the specific type of eczema you have is crucial for effective management. Below are the main types:

Atopic Dermatitis (Baby Eczema)

Linked to genetics and the immune system, commonly seen in children under five.

Symptoms: Large areas of redness on the hands, feet, or face.

Contact Dermatitis (Housewife’s hand)

Triggered by exposure to cleaning products or chemicals, leading to redness, skin peeling, and oozing wounds on the hands.

Seborrheic Dermatitis

Occurs in oily areas, such as the scalp, causing red patches and flaky skin.

Nummular Eczema

Characterised by itchy, circular red patches on the hands and feet. If untreated, it may develop into neurodermatitis, which is more challenging to treat.

Risks of Untreated Eczema

Even if your symptoms are mild, early diagnosis is important. If left untreated, eczema can lead to several complications, including:

Bacterial Infections:

Continuous scratching may result in wounds that ooze or become infected.

Skin Barrier Damage:

This can further aggravate dryness and inflammation, creating a cycle of worsening symptoms.

Prevention and Management of Eczema

To effectively manage eczema, it is crucial to minimise exposure to triggers while maintaining healthy skin. Here are some skincare tips to help prevent flare-ups:

Keep the skin moisturised by applying emollient creams regularly, particularly after bathing.

Avoid hot showers, which can damage the skin barrier.

Minimise contact with irritants, such as harsh chemicals.

For the treatment of mild eczema, short-term use of topical corticosteroids can be effective. More severe cases may require immunosuppressants or biologic treatments, such as JAK inhibitors. These advanced treatment options are particularly beneficial for children or patients who are averse to injections, offering remarkable results with fewer side effects.