What is eczema?

“Eczema” and “dermatitis” are sometimes used interchangeably in everyday conversation. Dermatitis refers to inflammation of the skin, and eczema usually refers to a group of inflammatory patterns in which dryness and itching are common. However, not all itchy skin conditions are eczema; fungus, psoriasis, scabies, and some drug reactions can also have a similar appearance.

Eczema can be chronic and relapsing, meaning it can get better and then flare up again. In many people, the severity of the condition can be controlled with ongoing care and appropriate treatment. Eczema itself is not contagious and cannot be spread through shaking hands, casual contact, swimming pools, or being around an infected person.

Why does eczema occur?

Healthy skin acts as a protective barrier: it keeps moisture in and limits the entry of irritants and some germs. In many types of eczema, this skin barrier is more vulnerable. As a result, water evaporates more easily from the skin's surface, and irritants can more easily cause inflammation.

There is no single cause for all types of eczema. Several factors may contribute to its development or exacerbation:

• Family or genetic background and personal history of allergies, asthma, or hay fever;
• Excessive or inappropriate immune system response in some people;
• Frequent contact with water, detergents, solvents, or chemicals;
• Dry weather, heat, sweating, or sudden changes in temperature;
• Contact with an allergen, such as certain metals, perfumes, or preservatives.

Common types of dermatitis and eczema

The appearance and location of the lesion can help with diagnosis, but it's not always possible to determine the type of condition based on a picture or description of symptoms alone. Some common types include:

1. Atopic dermatitis

It is a chronic, relapsing disease that is usually accompanied by dryness and itching. In children, the face and external surfaces of the limbs are most often involved; in adolescents and adults, the elbow creases and backs of the knees, neck, hands, and face are common sites. Of course, the pattern of involvement can vary from person to person.

2. Irritant contact dermatitis

It occurs as a result of direct damage to the skin by substances or repeated contact with the skin; for example, frequent hand washing, detergents, disinfectants, or certain solvents. Redness, dryness, cracking, and burning may occur at the site of contact. This type is not necessarily caused by an allergy.

3. Allergic contact dermatitis

It occurs when the immune system, after becoming sensitized to a particular substance, reacts to it again upon re-exposure. Possible examples include perfumes, nickel, some cosmetics, hair dyes, adhesives, and preservatives. The lesion may appear some time after exposure and sometimes extends beyond the initial exposure.

4. Seborrheic dermatitis

It mostly affects the scalp, eyebrows, sides of the nose, behind the ears, and parts of the chest, and may be accompanied by white or yellow scales and inflammation. Dandruff is a milder form of scalp involvement. It is not caused by the skin being "dirty."

5. Dyshidrotic eczema

It usually appears as small, very itchy blisters on the palms of the hands, the sides of the fingers, or the soles of the feet. After the blisters subside, the skin may become scaly or cracked. Heat, sweating, and certain types of contact are triggers in some people.

6. Coin eczema

It is characterized by round or oval, itchy patches that are sometimes scaly or oozing. Dry skin and irritation can be a contributing factor, but ring-shaped lesions are not always eczema, and a fungal infection should also be considered.

7. Dermatitis caused by blood stagnation

It is most commonly seen in the lower leg and is associated with venous circulation problems. Swelling, skin discoloration, itching, or scaling may be associated with this condition. This condition requires investigation of the underlying cause and should not be managed with skin creams alone.

Signs and symptoms of eczema

The severity and form of symptoms depend on the type of dermatitis, the location on the body, the duration of the disease, and the skin color. Common symptoms include:

• Itching, which sometimes becomes more severe at night or when sweating;
• Dry, rough, or sensitive skin;
• Redness or discoloration of the skin; in dark skin, the lesion may be purple, gray, brown, or darker than the surrounding area;
• Peeling, cracking, or thickening of the skin due to inflammation and prolonged scratching;
• Tiny bumps or small blisters;
• Fluid discharge or crusting in severe or scratched lesions;
• Burning or pain, especially if the skin is cracked or infected.

Itching and scratching can create a vicious cycle: Scratching further damages the skin barrier, increases inflammation, and creates new itching. Keeping nails short and treating flare-ups early can help break this cycle.

Triggers and aggravating factors

Triggers vary from person to person. Some common factors include:

• Soaps, strong detergents, perfumes, and scented skin products;
• Prolonged contact with water, frequent hand washing or use of disinfectants;
• Heat, sweating, tight clothing or rough fabrics;
• Cold, dry air or sudden temperature changes;
• Stress and lack of sleep, which can increase the severity of symptoms in some people;
• Occupational contact with water, gloves, cleaning agents, metals, or chemicals;
• Scratching the skin and using inappropriate or multiple products.

How is eczema diagnosed?

Diagnosis is often made by taking a history and examining the skin. The doctor will ask about the time of onset, recurrences, location of the lesions, severity of itching, products used, occupation, and history of allergic diseases. Photographs taken at different times can also shed more light on the course of the disease.

Testing is not necessary for everyone. If the diagnosis is unclear or treatment is not working, your doctor may recommend additional tests:

• Patch test: To test for contact sensitivity to specific substances, usually by placing the test substance on the skin for a specified period of time;
• Fungal sampling or testing: In selected cases, to rule out diseases with similar appearances;
• Other tests: Only if there are symptoms or history that justify their performance.

Allergy tests alone do not prove that a substance is the cause of eczema. The results must be interpreted in conjunction with the person's history and symptoms. It is also possible to have multiple skin conditions at the same time.

Daily skin care

Basic care is important for many people with eczema, even when the skin is improving. The goal is to maintain moisture, reduce exposure to irritants, and protect the skin's barrier.

Gentle wash

• Use lukewarm water; hot water can worsen dryness and itching.
• Keep bath time short and avoid scrubbing or rubbing your skin vigorously.
• Choose a gentle, fragrance-free cleanser suitable for sensitive skin.
• After washing, gently pat the skin dry with a soft towel; do not rub it.

Suitable moisturizer

Apply moisturizer to your skin after bathing and whenever it feels dry. Thicker ointments and creams usually retain moisture better than thinner lotions, but the final choice should be based on personal comfort and the area being applied. Unscented, simple products are often a better choice for sensitive skin.

Test any new product on a small area of ​​skin first. If burning, redness, or persistent itching occurs, stop using it and consult your doctor or pharmacist about a suitable alternative.

Reducing exposure to stimuli

• When working with cleaning materials, wear appropriate gloves and limit the time you wear them if they cause sweating.
• Choose soft, loose-fitting clothing and, if possible, wash new clothes before wearing them.
• Avoid applying perfume directly to inflamed skin and using scented products.
• In dry weather, maintaining humidity levels may be helpful for some people; humidifiers should be cleaned regularly.
• For itching, a short-term cool compress may be soothing; do not apply ice directly to the skin.

Medical treatments for eczema

Treatment is selected based on the type of eczema, its severity and extent, the location of the involvement, the person's age and history. One medication is not suitable for everyone, and self-medication can be problematic, especially if the face, eyelids, folds or genital area are involved.

Topical anti-inflammatory medications

Topical corticosteroids are a common treatment for eczema flare-ups. The strength of the medication and the duration of use should be determined by the location and severity of the condition. Incorrect or prolonged use, especially of strong products on thin skin, may cause side effects such as thinning of the skin. Follow your doctor's or pharmacist's instructions and do not mix the prescribed medication with other creams unless recommended.

For some sensitive areas or in some circumstances, your doctor may consider topical nonsteroidal medications such as calcineurin inhibitors or other options. The appropriateness of these medications depends on your diagnosis, age, and local guidelines.

Special treatments for hands, scalp, or certain types of eczema

Treatment varies depending on the location and cause. For example, seborrheic dermatitis may require scalp-specific products; contact dermatitis requires identifying and avoiding the offending substance; and hand eczema may require occupational protection and targeted topical treatment.

Phototherapy and systemic treatments

If the disease is widespread, severe, or resistant to topical treatments, a dermatologist may consider light therapy or oral or injectable medications. Some targeted therapies are available for a subset of patients, but their selection and monitoring require medical evaluation, as not all treatments are appropriate for all types of eczema or all ages.

Secondary infection

Eczema itself is not an infection, but scratching and damaging the skin can increase the risk of infection. Antibiotics or antifungal medications should not be automatically used for every flare-up; your doctor will only prescribe antiseptic treatment if there is good evidence to support it.

Eczema in children and infants

Eczema is common in children and can interfere with a child's sleep, play, and rest. The pattern of lesions changes with age and sometimes differs from the typical appearance in adults. Gentle skin care and regular use of moisturizer are usually an important part of the treatment plan.

• Use your child's topical medication only as directed by your doctor and for the prescribed period of time.
• Avoid wrapping the medication tightly or covering it with a bandage unless instructed to do so by your doctor.
• To avoid scratching, keep your nails short and choose soft clothing.
• Do not implement dietary restrictions without a doctor's diagnosis and guidance; this can disrupt the child's growth and nutrition.
• If the child is unwell, has a fever, or the lesions are spreading rapidly, medical evaluation is necessary.

If there is severe itching, sleep disturbance, frequent relapses, or inadequate response to usual care, your pediatrician or dermatologist may review the treatment plan.

Possible complications

Most cases can be controlled with proper care and treatment, but severe or long-term eczema can cause the following problems:

• Scratches, cracks, and skin pain due to repeated scratching;
• Bacterial or viral infection in damaged skin;
• Sleep disturbance, fatigue and decreased concentration;
• Skin discoloration or thickening after prolonged inflammation;
• Impact on quality of life, self-confidence, or daily activities.

These complications are not inevitable. Timely treatment, ongoing care, and proper follow-up can reduce the likelihood of many of them.

When should you see a doctor?

Do not delay medical evaluation if any of the following occur:

• The lesions are spreading rapidly or are accompanied by pain, warmth, swelling, or pus;
• There is fever, lethargy, or general malaise;
• Painful, widespread blisters, unusual scabs, or growing sores are seen;
• The involvement around the eyes, eyelids, or genital area is severe;
• Itching has disrupted sleep or daily activities;
• Despite proper care, the disease does not improve or returns frequently;
• You are not sure whether the lesion is eczema or another condition.

Misconceptions about eczema

"Eczema is contagious"

Eczema is not usually spread from person to person. If the skin is infected, the infectious agent may need to be treated separately; this is not the same as eczema itself being contagious.

"Every type of eczema comes from food allergies"

This is not the case. Food allergies may co-exist in some people, but they are not the cause of many cases of eczema. Eliminating food groups without evaluation can lead to nutritional deficiencies.

"Affected skin should be regularly disinfected or washed with strong soap."

Frequent, harsh washing often strips the skin of its protective oils, leading to dryness and inflammation. Gentle cleansing and regular moisturizing are usually more appropriate.

"Steroid cream is always dangerous"

These medications are effective treatments for inflammation when chosen at the appropriate type and strength and used as directed. The main risk is inappropriate, self-administered, or prolonged, unsupervised use; discuss concerns about the medication with your doctor, rather than stopping prescribed treatment without consultation.

"The more natural the product, the safer it is for the skin"

Natural and herbal ingredients can also cause allergies or irritation. For many people with sensitive skin, fragrance-free and simple ingredients are more important than claims of “natural” or “organic.”

Frequently Asked Questions

Is there a definitive cure for eczema?

The course of the disease depends on the type of eczema and the individual. Some people, especially children, experience fewer symptoms over time; in others, the condition is recurrent or chronic. Even though a definitive cure is not available, it is usually possible to control symptoms and reduce flare-ups.

Can I use makeup or beauty products with eczema?

When inflammation is active, it is best to avoid unnecessary products on the affected area. Once the skin has calmed down, try simple, unscented products on a small area first. If you have lesions around the eyes or face, consult a doctor before using any medical or cosmetic products.

Does stress make eczema worse?

Stress is not a direct cause of eczema for everyone, but it can worsen itching or flare-ups in some people. Getting enough sleep and relaxation techniques may help with overall management, but they are not a substitute for skin treatment.

What moisturizer should I choose?

Choose a simple, unscented product that is suitable for sensitive skin. A thick cream or ointment may be better for more dry skin; thin lotions are sometimes more comfortable for some people. If a product causes persistent irritation or worsens symptoms, stop using it and discuss other options.

Does eczema get better with sun?

Everyone responds differently, and sun exposure is not a standard treatment for eczema. Heat, sweating, and sunburn can aggravate symptoms. Medical light therapy is different from controlled sun exposure and should only be used under the supervision of a specialist.

Conclusion

Eczema is a group of skin inflammations, and to choose the right care, it is important to identify the type and possible cause. Regular moisturizing, gentle washing, avoiding known triggers, and the correct use of medical treatments are the foundations of its management. If symptoms are severe, recurrent, infectious, or unclear, it is important to see a doctor or dermatologist.