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Atopic dermatitis

Synonyms

Also known as Atopic eczema

Overview

Atopic dermatitis, or eczema, is a long-lasting skin condition causing itchy, red, and dry patches. It often starts in childhood and can continue into adulthood with occasional flare-ups. Atopic dermatitis is caused by genetic, immune, and environmental factors that disrupt the skin barrier. Common triggers include allergens like pollen, pet dander, certain foods, and environmental factors like dry or cold weather. Managing atopic dermatitis includes moisturizing, avoiding triggers, and using prescribed medications to reduce inflammation and itching. Though there's no cure, following a good skincare routine and seeking a doctor’s advice can help control symptoms and provide relief.

Key Facts

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Symptoms

Signs and symptoms of atopic dermatitis can vary based on age and racial factors. The most common symptoms include:

  • Itching, redness, and rashes
  • Patchy and dry skin (Xerosis)
  • Thickening and hardening of the skin
  • Blisters that ooze and crust over
  • Creases and discolored skin beneath the lower eyelids (Dennie-Morgan folds) in children
  • Persistent eczema, often on hands, feet, or around the eyes
  • Higher risk of skin infections

Cause

Atopic dermatitis is a complicated condition that arises from several different causes. These include:

  • Skin barrier dysfunction: In atopic dermatitis, the skin's outer layer (stratum corneum) is weakened, causing excess water loss and dryness. This damaged barrier allows irritants, allergens, and microbes to enter easily, leading to inflammation and worsening the condition.
  • Altered immune response: The immune system in affected individuals tends to overreact to triggers like allergens, leading to inflammation and itching. T cells and other immune cells release inflammatory mediators, including cytokines, which contribute to persistent skin inflammation.
  • Disruption of the skin's microbial balance: The skin's microbial composition is important for maintaining a healthy skin barrier and immune function. In atopic dermatitis, the balance of microorganisms on the skin's surface is disrupted, leading to an overgrowth of harmful bacteria and a decrease in beneficial microbes. This dysfunction further exacerbates inflammation and contributes to atopic dermatitis.

RiskFactors

Factors that can lead to atopic dermatitis or worsen its symptoms include:

  1. Genetics

    Genetics plays a role in atopic dermatitis, as family history and specific gene mutations can increase the likelihood of developing eczema by affecting skin barriers and immune responses.

  2. Environmental factors
    • Allergens: Pollen, pet dander, smoke from tobacco, and certain foods can trigger or worsen symptoms.
    • Irritants: Harsh soaps, detergents, perfumes, and chemicals can further irritate the skin.
    • Temperature and humidity: Extreme temperatures, low humidity, or excessive sweating can provoke symptoms.
    • Microbes: Bacterial, viral, or fungal infections can aggravate atopic dermatitis, particularly in cases where the skin is already compromised.
  3. Hormones

    Hormonal changes, such as those occurring during puberty or in women during the menstrual cycle, can influence the severity of atopic dermatitis.

  4. Stress and emotional factors

    Stress and emotional states can exacerbate atopic dermatitis symptoms or trigger flare-ups.

  5. Dietary factors

    While rare, certain food allergies, particularly in infants and young children, may trigger or worsen atopic dermatitis. Common culprits include cow's milk, eggs, soy, wheat, peanuts, and fish.

Allergies can be the trigger for your atopic dermatitis flare-ups. Want to know more about allergies and ways to tackle them? Read Here

Diagnosis

To diagnose atopic dermatitis, a thorough examination of the skin and a detailed medical and family history review are crucial. In cases of uncertainty or for confirmation of the diagnosis, the following tests can be conducted:

  • Patch testing: This test may be conducted to identify specific allergens or irritants that may be triggering or exacerbating the symptoms. It involves applying small amounts of potential allergens to the skin to see if they cause a reaction.
  • Allergy testing: Allergy testing may be done to identify specific allergens that could be contributing to the atopic dermatitis symptoms. Tests include:
    • Skin prick tests
    • IgE levels
  • Skin biopsy (Rarely): In certain cases where the diagnosis is unclear, a skin biopsy may be performed. It involves the extraction of a small piece of skin tissue, which is then analyzed under a microscope to validate the diagnosis.

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Prevention

Atopic dermatitis cannot be fully prevented, but steps can be taken to reduce the risk of flare-ups. These include:

  • Keeping the skin well-moisturized.
  • Avoiding known triggers such as harsh soaps, allergens, and stress.
  • Maintaining a consistent skincare routine.
  • Early intervention and proper management to minimize symptoms and prevent worsening.
  • Steering clear of triggers like specific foods, environmental allergens, or irritants that exacerbate symptoms.

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Preventive Tips for Children

Atopic dermatitis cannot be cured, but it often improves with age. Flare-ups can occur, so to prevent them, ensure your child:

  • Avoids triggers such as irritants (e.g., wool, harsh soaps), allergens (e.g., eggs, dust mites), and stress.
  • Refrains from scratching to prevent worsening symptoms and infection.
  • Keeps fingernails short to minimize scratching.
  • Takes warm, not hot, baths or showers and gently dries the skin.
  • Uses moisturizers, applying creams or ointments after bathing.
  • Wears soft clothing, avoiding rough fabrics like wool.
  • Stays cool to reduce discomfort.
  • Avoids the smallpox vaccine, as it is not recommended for individuals with atopic dermatitis.

Treatment

The management of atopic dermatitis focuses on alleviating symptoms, diminishing inflammation, and avoiding flare-ups. It may involve a combination of the following strategies:

  • Emollients (Moisturizers)
    Using thick, fragrance-free moisturizers is essential to maintain the skin's natural moisture barrier, thereby reducing dryness and itching. Soothe the itch with cold moisturizers or gels.
  • Topical Steroids
    The choice of topical corticosteroid for children depends on their age and the area that needs treatment. Commonly used ones are:
    • Hydrocortisone
    • Triamcinolone
    • Fluocinolone
    • Mometasone
  • Topical Calcineurin Inhibitors
    Calcineurin inhibitors help reduce inflammation and prevent flares. Examples include:
    • Tacrolimus
    • Pimecrolimus
  • Antihistamines
    These can help alleviate itching and discomfort associated with atopic dermatitis. Examples include:
    • Diphenhydramine
    • Chlorpheniramine
    • Cetirizine
    • Loratadine
    • Fexofenadine
    • Doxylamine
  • Antibiotics
    These may be prescribed to treat bacterial infections that can develop alongside eczema. It includes:
    • Clindamycin
    • Dicloxacillin
  • Immunosuppressants
    In some cases, immunosuppressant drugs may be necessary to manage atopic dermatitis. Options include:
    • Azathioprine
    • Methotrexate
    • Cyclosporine
  • Injectable Medication (Monoclonal Antibodies)
    These drugs work by inhibiting immune system proteins, thereby soothing the immune response and leading to reduced inflammation and milder symptoms. Commonly used ones are:
    • Tralokinumab
    • Dupilumab

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HomeCare

Here are some home remedies that can complement your treatment and help relieve atopic dermatitis symptoms:

  • Oatmeal baths: Soaking in an oatmeal bath can provide relief from itching and inflammation. How to do it? Simply finely grind plain, unflavored oats and incorporate them into your bathwater.
  • Coconut oil (Nariyal ka tel): Applying virgin coconut oil to affected areas may help soothe dry and itchy skin due to its moisturizing and anti-inflammatory properties.
  • Aloe vera: Aloe vera gel, especially when kept in the refrigerator for a cooling effect, can provide relief from itching and help with skin inflammation.
  • Honey (Shahad): Honey has natural antibacterial properties and can help soothe the skin. How to use it? Apply a thin layer of honey to the affected area and cover with a clean cloth or bandage.
  • Primrose oil: When taken as a supplement, it may potentially help alleviate symptoms of atopic dermatitis due to its anti-inflammatory properties. Note: Always consult with your doctor before starting any supplements.
  • Sunflower seed oil (SSO): It relieves atopic dermatitis by hydrating the skin and reducing inflammation due to its rich emollient and anti-inflammatory properties.

Complications

Atopic dermatitis (AD) is a long-lasting inflammatory skin condition that can cause complications, impacting both the skin and overall well-being, including emotional health. Here are some possible complications of AD:

  1. Bacterial infections
    • Skin and soft tissue infections (SSTI): Individuals with AD are more susceptible to skin infections caused by bacteria, particularly Staphylococcus aureus.
    • Bacteremia: In severe cases, bacteria can enter the bloodstream (bacteremia) through the skin lesions, potentially leading to systemic infections.
    • Osteomyelitis: This is a bone infection that can occur if the infection spreads to the bones, causing pain, swelling, and limited mobility in the affected bone.
    • Septic arthritis: An infection in a joint that can result from bacteria entering the joint space through the bloodstream.
  2. Viral infections
    • Eczema herpeticum (EH): EH is a severe complication where the herpes simplex virus (HSV) infects the compromised skin in individuals with AD. Important: People with atopic dermatitis should avoid the smallpox vaccine, even if their condition seems controlled, due to the risk of a severe infection called eczema vaccinatum. The live vaccinia virus in the vaccine can replicate and spread, posing a significant danger to individuals with this skin condition.
    • Viral warts: AD patients are prone to viral warts, especially those caused by human papillomavirus (HPV).
  3. Endocarditis: A rare but serious infection of the heart’s inner lining, often caused by bacteria from a skin infection entering the bloodstream.
  4. Hyperpigmentation and Scarring: Chronic inflammation and recurrent flares of atopic dermatitis can lead to changes in skin color (hyperpigmentation) and scarring in the affected areas.
  5. Psychological and Emotional Impact: Living with a chronic skin condition like atopic dermatitis can have a significant emotional toll. It may lead to stress, anxiety, depression, low self-esteem, and difficulties in social interactions due to the visible and often uncomfortable symptoms. Take care of your mental health like you would take care of your body. Check out our widest range of mind care products to manage stress and anxiety after consulting with your doctor.

AlternativeTherapies

Complementary and alternative therapies can be considered as adjuncts to conventional treatments for atopic dermatitis (AD) in both adults and children, promoting symptom relief and overall well-being. Consult your doctor before trying any alternative remedies for AD.

  • Phytotherapy

    Phytotherapy, or herbal medicine, involves using plant extracts for medicinal purposes. Certain herbs may have anti-inflammatory properties and could be used topically or internally to complement conventional treatments for AD.

  • Bath Therapy

    Bath therapy, often using additives like colloidal oatmeal, baking soda, or apple cider vinegar, can be soothing for AD patients. Baths can help hydrate the skin, reduce itching, and provide relaxation, contributing to overall skin comfort and relief.

  • Probiotics

    Probiotic supplements or foods rich in probiotics may support gut health and potentially help in managing AD symptoms by modulating the immune system.

  • Dietary Supplements

    Gamma-linoleic acid: This compound is used to treat AD symptoms and is found in various plant oils, such as borage oil and evening primrose oil.

    Omega-3 fatty acids: These fatty acids possess therapeutic properties for alleviating AD symptoms by mitigating the inflammation associated with the condition.

  • Homeopathy

    Homeopathy for atopic dermatitis uses highly diluted natural substances to stimulate the body’s healing response and reduce symptoms. While some people find it helpful, it's best used alongside conventional treatments due to limited scientific evidence.

Note: Always consult a doctor before using complementary or alternative therapies to ensure they are safe and appropriate for the individual's condition and to avoid any potential interactions with existing treatments.

Living With Disease

Atopic dermatitis can severely impact quality of life, affecting relationships, work, and overall happiness due to its chronic itching, pain, and skin issues. This can limit daily activities, clothing choices, and social engagements.

Atopic dermatitis, or eczema, can cause itching, irritation, and sensitivity in your skin. Follow these dermatologist-approved tips to ease discomfort and minimize flare-ups.

  • Hydrate and Moisturize: Apply fragrance-free cream or ointment after bathing or whenever your skin feels dry to create a protective barrier.
  • Quick tip: Seal in moisture after a bath or shower by immediately applying moisturizer to your skin.
  • Avoid fragrances: Choose skincare products labeled "fragrance-free" to prevent triggering eczema flares. Avoid products labeled "unscented" as they can still contain hidden fragrances.
  • Patch test new products: Test a small amount of a new skincare product on your inner arm for 7-10 days to ensure it doesn't cause a reaction before using it on your skin.
  • Quick, moisturizing baths: Enjoy brief 5-10 minute baths or showers with warm water to keep your skin hydrated. Afterward, apply moisturizer right away to seal in the moisture.
  • Identify triggers: Determine what triggers your eczema and avoid these substances to reduce flare-ups. Eczema-prone skin is sensitive and can react to various everyday factors.
  • Skin-friendly clothing and detergent: Opt for loose-fitting 100% cotton clothing, avoid wool against the skin, and use fragrance-free, dye-free laundry detergent. Wash new clothes before wearing them. Use 100% cotton towels and sheets for additional relief.
  • Manage temperature exposure: Protect your skin from extreme temperatures; cold weather can dry the skin, while overheating and sweating can trigger eczema flare-ups. You can also use a humidifier if dry air makes your skin dry.

To prevent Staphylococcus aureus skin infections, consider these options for controlling colonization in severe or stubborn cases:

  • Use a sodium hypochlorite body wash during bath or shower.
  • Apply intranasal mupirocin twice a day for 5 days.
  • Try bleach-bath therapy by adding a small amount of bleach (one teaspoon per gallon of water in a toddler tub) to reduce bacteria and skin inflammation, thereby alleviating symptoms.

Remember: Regular follow-ups with doctors and adherence to treatment plans are crucial in managing the condition effectively.

References

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Frequently asked questions

No, atopic dermatitis is not contagious, even with an active rash. However, if the rash oozes, it may indicate an infection that could be transmitted through physical contact.
Vaseline can soothe atopic dermatitis by creating a protective barrier that retains moisture and prevents skin dryness.
Yes, specific temperature and weather conditions can worsen atopic dermatitis. Low humidity can cause skin dryness, while high heat and humidity can lead to sweating and increased itchiness.
Atopic dermatitis is usually hereditary, making prevention in children unlikely.
Yes, chlorinated swimming pools can worsen atopic dermatitis due to the drying effect of chlorine on the skin.