Dermatitis is a general term for inflammation of the skin, characterized by redness, itching, swelling, and sometimes blistering or scaling. It can result from various causes, including allergic reactions (allergic contact dermatitis), irritants such as chemicals or soaps (irritant contact dermatitis), genetic predisposition as seen in atopic dermatitis (eczema), or overactive oil glands in seborrheic dermatitis. Symptoms vary depending on the type and severity but often include dry, flaky skin, rashes, and discomfort. Triggers may involve environmental allergens, stress, weather changes, or exposure to certain substances. Treatment typically focuses on identifying and avoiding triggers, moisturizing the skin, and using topical medications such as corticosteroids or antihistamines to reduce inflammation and relieve symptoms.