What is contact dermatitis?

Contact dermatitis refers to a specific type of skin inflammation that occurs as a direct result of skin coming into contact with an irritant or allergen. This condition often manifests with symptoms such as redness, itching, swelling, and sometimes blistering in the affected area. It is important to differentiate between irritant contact dermatitis, which results from exposure to substances like soaps or chemicals that damage the skin’s protective barrier, and allergic contact dermatitis, which occurs when the immune system reacts to a substance, such as certain metals or fragrances.

The other answers do not accurately define this condition. Genetic skin conditions, like atopic dermatitis, are related to a hereditary predisposition rather than direct contact with irritants. Autoimmune disorders affecting skin elasticity, such as lupus or scleroderma, involve systemic issues rather than localized skin reactions linked to environmental factors. Lastly, infectious diseases caused by bacteria typically present with symptoms of infection, including pus formation or fever, rather than the irritation and inflammation seen in contact dermatitis.