There are several types of eczema. The types of eczema vary by what triggers the rash and the appearance of symptoms of the rash.
Atopic dermatitis, often referred to as eczema, is the most common type of that. Atopic dermatitis is also called dermatitis or atopic eczema. The cause of atopic dermatitis is thought to be genetic.
An itchy, inflamed rash is a common symptom of atopic dermatitis. The rash may also be dry and flaky or weeping. Of the young children who develop atopic dermatitis, about half will continue to have symptoms into adulthood.
Exposure to an allergen can cause contact dermatitis. An allergen is a substance that causes a reaction from a hypersensitive immune system.
Some common allergens that can cause contact dermatitis are hair dyes, soaps, shampoos, chemicals, and metals. The dry, itchy, red rash of contact dermatitis can form blisters in severe cases.
Some types of eczema are not typically seen in patients younger than middle age. Stasis eczema is a type of eczema that affects people over the age of forty. The unique cause of this type of eczema is poor circulation.
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Asteatotic eczema is a type of eczema that most commonly affects the elderly. Asteatotic eczema is caused by dry skin and can cause the development of painful cracks in the skin.
A type of eczema that typically only affects the scalp but may also affect the face and other parts of the body is known as seborrheic dermatitis. Seborrheic dermatitis can cause cradle cap in infants.
One type of eczema that can be severe and cause blisters, intense itchiness, and deep, painful cracks is called dyshidrotic eczema. Experts are uncertain of the exact cause of dyshidrotic eczema, but people who have a family or personal medical history of asthma, eczema, or hay fever seemed to be susceptible to this condition.
A type of eczema that is caused by an irritation of the nerves is called neurodermatitis. Neurodermatitis causes intense itchiness that is persistent.
Learn more about signs and symptoms of celiac disease and also asthma signs and symptoms to understand the underlying causes of both allergies. Read further on our allergy website.