Eczema, also known as eczematous dermatitis, encompasses a broad range of skin rashes. The causes may stem from heredity, but may also be caused by allergies/sensitivities to certain allergens, environmental factors, or as a result of secondary causes. A board certified dermatologist will evaluate the condition, and offer strategies to best manage your condition. For adults, 18 years of age and older with atopic (hereditary) eczema, a new drug called dupilumab (Dupixent) may be very beneficial.