Dermatitis is a general term for inflammation of the skin. Common forms include atopic dermatitis (eczema), contact dermatitis caused by irritants or allergens, and seborrhoeic dermatitis affecting oily areas such as the scalp and face.
Identifying the type matters because treatment differs: contact dermatitis improves when the trigger is removed, while other forms rely on anti inflammatory treatment and skin barrier care. A doctor can usually distinguish the type from history and photos during a telehealth review.