Eczema is not contagious. You can’t “catch it” from someone else. While the exact cause of eczema is unknown, researchers do know that people who develop eczema do so because of a combination of genes and environmental triggers. When an irritant or an allergen from outside or inside the body “switches on” the immune system, it produces inflammation. It is this inflammation that causes the symptoms common to most types of eczema.

There are several different types of eczema that you should know about:

• Atopic dermatitis
• Contact dermatitis
• Dyshidrotic eczema
• Nummular eczema
• Seborrheic dermatitis
• Stasis dermatitis

Though there are several distinct types of eczema, it is possible to have more than one type at a time. All types of eczema cause itching and redness, but some may also cause your skin to blister, “weep,” or peel.

It’s important to understand which type you or your child may have and also your symptoms and triggers, so that you can best treat and manage your eczema. But the only way to be sure that you or your child has eczema and which type, is to make an appointment with your doctor.

1. Atopic dermatitis

Atopic dermatitis is a type eczema that is chronic and inflammatory. Though the exact cause of atopic is unknown, it happens when the immune system goes into overdrive in response to an allergen or irritant inside or outside the body. AD usually begins in childhood, often in the first six months of the life. When you or your child have AD, it might improve at times or it may get worse (when you may experience what’s called a “flare”).

Atopic dermatitis is part of what’s called the atopic triad, which includes two other allergic conditions (asthma and hay fever, which is also known as allergic rhinitis). Researchers believe that people who come from families with a history of atopic dermatitis, asthma and/or hay fever are more likely to develop atopic dermatitis themselves.

Some common symptoms of atopic dermatitis:

• Dry, scaly skin
• Redness (erythema)
• Itching
• Cracks behind the ears
• A rash on the cheeks, arms and legs
• Open, crusted or “weepy” sores (usually during flare-ups)

Read more about atopic dermatitis symptoms, triggers and types of treatment.

2. Contact dermatitis

Contact dermatitis happens when the skin touches irritating substances or allergens. These make the skin inflamed, causing it to burn, itch and become red. There are several kinds of contact dermatitis but irritant contact dermatitis and allergic contact dermatitis are the most common. Contact dermatitis usually appears on the hands, or parts of the body that touched the irritant/allergen.

The  most common irritants include:

• Solvents
• Industrial chemicals
• Detergents
• Fumes
• Tobacco smoke
• Paints
• Bleach
• Wool
• Acidic Foods
• Astringents
• Skin care products that content alcohol (but not cetyl alcohol)
• Some soaps and fragrances
• Allergens (usually animal dander or pollens)

Symptoms of contact dermatitis include:

• Redness and rash
• Burning or swelling
• Blisters that may weep or crust over

Read more about dyshidrotic eczema symptoms, triggers and types of treatment.

3. Dyshidrotic eczema

Dyshidrotic eczema is a condition that produces small, itchy blisters on the edges of the fingers, toes, palms, and soles of the feet. Stress, allergies (such as hay fever), moist hands and feet, or exposure to nickel (in metal-plated jewelry), cobalt (found in metal-plated objects, and in pigments used in paints and enamels), or chromium salts (used in the manufacturing of cement, mortar, leather, paints, and anticorrosives) may be “triggers” of dyshidrotic eczema. This type of eczema is twice as common in women as it is in men.

Symptoms of dyshidrotic eczema include:

• Small fluid-filled blisters (vesicles) on the fingers, hands, and feet
• Itching
• Redness
• Flaking
• Scaly, cracked skin
• Pain

Read more about dyshidrotic eczema symptoms, triggers and types of treatment.

4. Nummular eczema – nummular dermatitis

Nummular (numb-mu-LUR) eczema, also known as discoid eczema and nummular dermatitis, is a common type of eczema that can occur at any age. It looks very different than the usual eczema and can be much more difficult to treat. People with nummular eczema develop coin-shaped spots on their skin, which may be very itchy. It is thought to be “triggered” by things like insect bites, reactions to skin inflammation, or dry skin in the winter.

Some symptoms of nummular eczema include:

• Round, coin-shaped spots
• Itching
• Dry, scaly skin
• Wet, open sores

Read more about nummular eczema symptoms, triggers and types of treatment.

5. Seborrheic dermatitis

Considered a chronic form of eczema, seborrheic dermatitis appears on the body where there are a lot of oil-producing (sebaceous) glands like the upper back, nose and scalp.

Seborrheic dermatitis on the scalp is called dandruff.

The exact cause of seborrheic dermatitis is unknown, although genes and hormones play a role. Microorganisms such as yeast, that live on the skin naturally can also contribute to seborrheic dermatitis. Unlike many other forms of eczema, seborrheic dermatitis is not the result of an allergy.

People of any age can develop seborrheic dermatitis including infants (known as “cradle cap”). It is slightly more common in men than women.

People with certain diseases that affect the immune system, such as HIV or AIDS, and the nervous system, such as Parkinson’s disease, are believed to be at an increased risk of developing seborrheic dermatitis.

Seborrheic dermatitis often appears on the scalp, where symptoms may range from dry flakes (dandruff) to yellow, greasy scales with reddened skin. Patients can also develop seborrheic dermatitis on other oily areas of their body, such as the face, upper chest and back.

Common symptoms of seborrheic dermatitis include:

• Redness
• Greasy, swollen skin
• White or yellowish crusty flakes

Read more about seborrheic dermatitis.

6. Stasis dermatitis

Stasis dermatitis is also called gravitational dermatitis, venous eczema and venous stasis dermatitis. It happens when there is a problem with blood flow in the veins and pressure develops (usually in the lower legs). This pressure can cause fluid to leak out of the veins and into the skin, resulting in stasis dermatitis.

Symptoms of stasis dermatitis include:

• Swelling around the ankles
• Redness
• Scaling
• Itching
• Pain

And in more severe cases:

• Oozing
• Open areas (cracking or larger ulcers)
• Infection

Read more about stasis dermatitis symptoms, triggers and types of treatment.

The post The Different Types of Eczema appeared first on Medika Life.

Considered a chronic form of eczema, seborrheic dermatitis appears on the body where there are a lot of oil-producing (sebaceous) glands like the upper back, nose and scalp. The exact cause of seborrheic dermatitis is unknown, although genes and hormones play a role. Microorganisms that live on the skin naturally can also contribute to seborrheic dermatitis.

People of any age can develop seborrheic dermatitis including infants (known as “cradle cap”). However, it most commonly affects adults between the ages of 30-60 and infants under 3 months.

Seborrheic dermatitis on the chest that shows round, red areas and slight scaling

Common triggers for seborrheic dermatitis include:

• Stress
• Hormonal changes or illness
• Harsh detergents, solvents, chemicals and soaps
• Cold, dry weather
• Medications such as psoralen, interferon and lithium

In general, seborrheic dermatitis is slightly more common in men than in women. Patients with certain diseases that affect the immune system (such as HIV/AIDS and psoriasis) and the nervous system, such as Parkinson’s disease, are also at increased risk of developing seborrheic dermatitis. It can also affect people who have epilepsy, alcoholism, acne, rosacea and mental health issues such as depression and eating disorders.

Seborrheic dermatitis is not contagious.

What does seborrheic dermatitis look like?

Seborrheic dermatitis often appears on the scalp, where symptoms may range from dry flakes (dandruff) to yellow, greasy scales with reddened skin. Patients can also develop seborrheic dermatitis on other oily areas of their body, such as the face, upper chest and back.

Seborrheic dermatitis appears in oily skin areas like the side of the nose and causes redness and yellow scale

Common symptoms of seborrheic dermatitis include:

• Redness
• Greasy, swollen skin
• White or yellowish crusty flakes
• Itch and burning
• Pink-colored patches, most prominent in people with dark skin

What causes seborrheic dermatitis?

The exact cause of seborrheic dermatitis is unknown, although genes and hormones play a role. Microorganisms such as yeast, that live on the skin naturally can also contribute to seborrheic dermatitis. Unlike many other forms of eczema, seborrheic dermatitis is not the result of an allergy.

People of any age can develop seborrheic dermatitis including infants (known as “cradle cap”). It is slightly more common in men than women.

People with certain diseases that affect the immune system, such as HIV or AIDS, and the nervous system, such as Parkinson’s disease, are believed to be at an increased risk of developing seborrheic dermatitis.

How is seborrheic dermatitis diagnosed?

Seborrheic dermatitis can often look like – or even appear with – other skin conditions such as atopic dermatitis and psoriasis.

There is no test for diagnosing seborrheic dermatitis. Your doctor will ask about your medical history and also perform a physical examination of your skin. Sometimes, the doctor with scrape a bit of skin, mix it with a chemical and look at it under a microscope to determine if there is a fungal infection. Similarly, a skin biopsy (a procedure in which a small sample of skin is taken) may be required to rule out the other conditions that look like seborrheic dermatitis.

If you are experiencing symptoms, make an appointment with your doctor to get the correct diagnosis and treatment.

Seborrheic dermatitis treatment

Treatment for seborrheic dermatitis focuses on loosening scale, reducing inflammation and swelling, and curbing itch.

In mild cases, a topical antifungal cream or medicated shampoo (such as ketoconazole, selenium sulfide, coal tar, and zinc pyrithione) may be enough to control symptoms.

Guidelines for treating seborrheic dermatitis include:

• For the scalp: Alternate between using your regular shampoo and a medicated dandruff shampoo. If you are African American, wash with the medicated shampoo once weekly. Taper off as your symptoms improve.
• For the body:  Wash daily with a gently cleanser that has 2% zinc pyrithione, followed by a moisturizer. To further soften scale, use a cream containing salicylic acid and sulfur or coal tar.

In more severe cases, you may receive a prescription for a mild corticosteroid medication to calm the inflammation as well. Use topical corticosteroids only as directed—that is, when the seborrheic dermatitis is actively flaring.

In cases where corticosteroids are not appropriate, or when they have been used for a prolonged period, a non-corticosteroid topical medication such as tacrolimus (Protopic) or pimecrolimus (Elidel) may be prescribed. These medications are called topical calcineurin inhibitors (TCIs) and are approved for use by adults and children two years of age or older. Oral antifungal agents may be used in very severe cases.

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