Which skin condition is often triggered by allergens or irritants?

Eczema, also known as atopic dermatitis, is often triggered by allergens or irritants, making it the correct choice. This skin condition is characterized by inflammation, redness, and itching, and it frequently occurs in individuals who have a family history of allergies or asthma. Common triggers include exposure to soaps, detergents, or fabrics that can irritate the skin, as well as environmental allergens like pollen, pet dander, or certain foods.

When the skin barrier is compromised due to these irritants, it leads to the characteristic symptoms of eczema, which can vary from mild to severe. Understanding this condition is essential for effective management, as avoiding known triggers can help minimize flare-ups and improve the skin's condition.

In contrast, psoriasis is an autoimmune condition that results in the rapid growth of skin cells, leading to red, scaly patches and is not primarily caused by allergens. Impetigo is a contagious bacterial infection that results from bacteria entering the skin, typically following a break in the skin, rather than due to allergic reactions. Lastly, vitiligo is a condition characterized by the loss of skin color due to the destruction of melanocytes and is not triggered by allergens or irritants.