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Contact dermatitis is an itchy rash caused by direct contact with a substance or an allergic reaction to it. The rash isn't contagious, but it can be very uncomfortable. Many substances can cause this reaction, such as cosmetics, fragrances, jewelry and plants.
Your health care provider may be able to diagnose contact dermatitis by talking to you about your signs and symptoms. You might be asked questions to help identify the cause of your condition and uncover clues about the trigger substance. And you'll likely undergo a skin exam to assess the rash.
Learn to identify types of dermatitis by how the skin looks. Examples include atopic dermatitis, contact dermatitis and seborrheic dermatitis.
To diagnose dermatitis, your doctor will likely look at your skin and talk with you about your symptoms and medical history. You may need to have a small piece of skin removed for study in a lab, which helps rule out other conditions.
A common cause of dermatitis is contact with something that irritates your skin or triggers an allergic reaction. Examples of such things are poison ivy, perfume, lotion and jewelry containing nickel.
Atopic dermatitis (eczema) is one of several types of dermatitis. Other common types are contact dermatitis and seborrheic dermatitis (dandruff). Dermatitis isn't contagious. Risk factors. The main risk factor for atopic dermatitis is having had eczema, allergies, hay fever or asthma in the past.
Nickel allergy is a common cause of allergic contact dermatitis — an itchy rash that appears where your skin touches a usually harmless substance. Nickel allergy is often associated with earrings and other jewelry.
El contacto con ciertas sustancias, como la hiedra venenosa, las lociones para la piel y los detergentes, puede causar un sarpullido que provoca picazón. Aquí te explicamos cómo controlar esta forma común de dermatitis.
The first step in treating nickel allergy is avoiding contact with the metal. There's no cure for nickel allergy. Once you develop a sensitivity to nickel, you'll develop a rash (contact dermatitis) whenever you come into contact with the metal.
Contact dermatitis can appear as an itchy rash. Poison ivy rash is caused by an allergic reaction to an oily resin called urushiol (u-ROO-she-ol). This oil is in the leaves, stems and roots of poison ivy, poison oak and poison sumac.