What Causes Eczema Flare Ups? 6 Common Triggers

Jan 30, 2025

Eczema, medically known as atopic dermatitis, is a complex skin disease caused by multiple reasons. Nearly 15% of children and 8% of adults get affected by this condition. In this blog, we will discuss some of the common triggers which cause eczema flare ups.

A Little About Eczema

Eczema is an inflammatory skin condition and can start at any age. In this condition, the skin’s outermost layer does not work causing it to dry up and bacteria can take hold.

Eczema flare ups are very common. These triggers can be caused by a substance inside or outside your body that activates your immune system. As a result, skin inflammation worsens causing eczema’s itchy and inflamed rash.

As a consequence, you may also develop swelling in the area under the rash and small bumps, oozing pus and crusting. Another symptom that distinguishes a flare up is extreme itching.

Common Triggers of Eczema Flare Ups

Eczema flare-ups can be caused by many different triggers. Here are six of the most common ones:

  1. Dry Skin
    Dry skin is a major eczema trigger. Everyone with eczema deals with a weakened skin barrier, making it harder to retain moisture. Keeping skin hydrated is essential. Some key skincare tips include:

    • Applying moisturizer frequently
    • Using gentle, fragrance-free products
    • Taking warm (not hot) showers or baths
  2. Allergens
    Allergies often contribute to eczema flare-ups. Food allergies, airborne allergens (such as pollen, dust mites, mold, and pet dander), and contact allergens (substances that irritate the skin upon touch) can all worsen eczema symptoms.
  3. Warm Environments
    Heat is another common trigger. Hot showers, warm weather, and excessive sweating can all lead to flare-ups. Staying cool and avoiding overheating can help manage symptoms.
  4. Stress and Anxiety
    When you’re stressed or anxious, your body releases cortisol, a hormone that triggers inflammation. If stress is a regular part of your life, it can cause recurring eczema flare-ups. Managing stress through relaxation techniques and self-care can help reduce symptoms.
  5. Irritants
    Everyday products often contain chemicals that can irritate sensitive skin. Common irritants include:

    • Hand and dish soap
    • Laundry detergent
    • Shampoo and bubble bath
    • Baby wipes
    • Skin lotions and perfumes
    • Makeup
    • Fragrances in personal care products
    • Spray cleaners and disinfectants
    • Antibacterial ointments
    • Certain fabrics like wool and polyester
  6. Dietary Choices
    Certain foods can contribute to eczema flare-ups. While triggers vary from person to person, common culprits include dairy, eggs, nuts, and gluten. Keeping a food diary and working with a healthcare professional can help identify potential dietary triggers.

Overall Insight

Eczema is often mistaken for other rashes, but it’s a chronic condition that tends to return. Flare-ups can last weeks or longer, depending on the cause and whether treatment is sought. Some common eczema triggers are dry skin, allergens, dietary choices, stress and irritants.

Our eczema treatment at Vital Clinic & Spa aims to identify potential triggers and tailoring a plan suited best for your skin needs. If you or your child have recurring itchy rashes, don’t wait for them to worsen. Call us at (832) 533-8404 to book your appointment.