Skin

Causes of Eczema: 12 Key Reasons Why Your Skin May Flare Up

Published April 1, 2025 | Updated September 7, 2026

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Medically reviewed by

TEJAL AJMERA PATEL

28+ Years of experience
Dermatology,
Hair Specialist,
Oncology,
Pediatrics,
Skin Specialist

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Eczema (Medically known as Atopic Dermatitis) isn’t always just about dry skin or random flare-ups. It’s often the result of a combination of genetic, environmental, lifestyle, and emotional factors. In India, the prevalence of eczema has steadily increased, especially in urban areas, with up to 12% of children and 8–10% of adults showing chronic symptoms as per the Indian Dermatology Society (2023).

While moisturizers and steroids may help temporarily, understanding the root cause of your eczema is key to long-term control and recovery.

What Really Causes Eczema?

Eczema is caused by a compromised skin barrier and an overreactive immune system, making the skin vulnerable to irritants and allergens. It often runs in families and is influenced by both internal and external triggers.

Environmental and Lifestyle-Related Eczema Causes

Weather changes (especially dry winters or monsoons)
Air pollution and dust exposure
Harsh soaps, detergents, or fabrics
Sweat and friction during exercise
Overbathing or using hot water

Even commonly used household products can irritate already sensitive skin

Immune System, Genetics, and Atopic Factors

Eczema is often linked to a gene mutation (filaggrin) that weakens the skin’s protective barrier
People with eczema often have a family history of asthma or allergies
The immune system becomes overreactive, leading to inflammation from even minor irritants
Children are more prone to eczema (Atopic Dermatitis)

Foods That Can Trigger or Worsen Eczema

Certain foods can lead to flare-ups, especially in children. Common triggers include:

Dairy products
Eggs
Wheat and gluten
Nuts and soy
Sugary or processed snacks

Psychological Triggers: Is Stress a Hidden Cause?

Stress is a major yet underestimated eczema trigger. Emotional distress can increase cortisol levels, which impacts immune function and aggravates skin inflammation.

At Dr Batra’s^®, we’ve seen that stress management plays a critical role in breaking the flare cycle.

When to Take an Eczema Evaluation Test

Consider taking an eczema evaluation test if:

You have repeated flare-ups in the same areas
Moisturisers and creams offer only temporary relief
You suspect your diet or lifestyle could be a trigger
Symptoms worsen with stress or weather changes

Dr Batra’s^® pro tip:

Identifying your eczema triggers, like detergents, food, or climate, can prevent chronic flare-ups.

How Dr Batra’s^® Treats the Root Causes of Eczema

We don’t just treat the rash we treat the reason behind it. Here’s how:

Personalised homeopathic treatments that reduce immune hyper-reactivity
Supportive guidance on food, environment, and mental wellness
Long-term results with no steroids or side effects
Expert Care from a Team of Homeopathic Dermatologists ensuring the best treatment approach
95% Success Rate in treating skin conditions with clinically proven results
International Protocols to monitor treatment progress and ensure optimal outcomes

Your Skin Deserves Expert Care!

Book an Appointment

Conclusion

Eczema is caused by a combination of genetics, environment, and immune dysfunction
Weather, stress, diet, and harsh products can all worsen symptoms
Early evaluation and diagnosis help prevent long-term complications
Identifying personal triggers is key to lasting relief
Dr Batra’s^® provides personalized treatment based on your root cause
Take an evaluation test or book a consultation for expert care today

Sources

Frequently Asked Questions

Eczema is often due to genetic skin barrier defects and an overactive immune system. It makes skin vulnerable to allergens, irritants, and internal triggers like stress or food sensitivities.

Dairy, eggs, gluten, soy, and sugar can cause flare-ups in some people, especially children. Identifying these with expert help is essential for long-term control.

Yes, it’s linked with asthma, allergic rhinitis, and food allergies. It’s part of a group of allergic conditions known as the atopic triad.

No. Eczema is not caused by fungi, though scratching may cause secondary infections. It’s an immune-based, non-contagious skin condition.

Homeopathy works well for long-term management. In acute cases, topical emollients and antihistamines may help, but they don’t address the root cause.

Yes. Emotional stress increases inflammation and worsens flare-ups. Stress management is crucial in eczema care.

Generally dry eczema is not contagious. However, with secondary infection it is contagious.

Stress, metals (like nickel), heat, or sweat can trigger episodes. Identifying these through lifestyle evaluation is essential.

Absolutely. Emotional stress weakens skin immunity, making flare-ups more frequent and severe.

Triggers include allergens, stress, cold weather, irritating fabrics, or dietary changes. Each person has a unique trigger profile.

In India, eczema affects up to 12% of children and around 10% of adults, particularly in urban settings.

Yes. It commonly runs in families, especially if there’s a history of asthma, hay fever, or allergies.

Absolutely. An imbalanced diet, poor sleep, and high stress can all contribute to frequent flare-ups.