Wednesday, August 10, 2011

Causes Of Dermatitis

A number of health conditions, allergies, genetic factors, mental and physical stress, and irritants may cause dermatitis.

Contact dermatitis

This condition leads to direct contact with one of many irritants or allergens.

Common irritants include:

Laundry soap

Skin soaps or detergents

Detergents

Possible allergens include:

Rubber

Metals such as nickel, jewelry

Perfumes and fragrances

Cosmetics

Weeds as Poison Ivy

Neomycin, a common ingredient in topical creams antibiotics

We need a greater amount of contact with an irritant in a length of more time to cause dermatitis than it takes for an allergen. Once you become sensitized to an allergen, only a brief exposure to small amounts can cause dermatitis. Once you develop a sensitivity to an allergen, which are often for life.

Neurodermatitis

This type of rash usually develops when something has created a feeling of itching in a given region to the skin. This irritation can lead to rub or scratch the skin several times in that area. Common locations include ankles, wrist, forearm or hand outside, and the back of the neck.

Possible causes are:

Dry skin

Chronic irritation

Eczema

Psoriasis

Seborrheic dermatitis

This condition causes a red rash and a little yellow '"fat" scales, usually on the scalp. It is more common in people with oily skin or hair, and can come and go, depending on the season. And 'likely that genetic factors play its part in this condition.

Possible causes are:

Physical stress

Travel

Neurological disorders such as Parkinson's disease

In infants, this condition is called cradle cap.

Stasis dermatitis

Stasis dermatitis can occur when fluid accumulates in the tissues under the skin - typically the lower legs - because of slow return blood to the heart veins. The excess fluid interferes with the ability of blood to nourish the skin and places additional pressure on the skin underneath.

The possible causes are:

Varicose veins

Other chronic or recurrent infections that affect the circulation in your legs

Atopic dermatitis

This condition often occurs with allergies and frequently runs in families whose members suffer from asthma or hay fever. It usually begins in childhood and can range in severity during childhood and adolescence. It tends to become less of a problem in adulthood, unless you're exposed to allergens or irritants at work.

Possible causes are a combination of:

Dry, irritated skin

Malfunction of the immune system

A genetic predisposition to allergic conditions such as asthma or hay fever

Stress can exacerbate atopic dermatitis, but not the cause.

Perioral dermatitis

This type of dermatitis may be a form of skin disorder rosacea, adult acne or seborrheic dermatitis, which affects the skin around the mouth or nose.

Possible causes are:

Makeup

Moisturizing cream

Topical corticosteroids

Dental products containing fluoride

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