Eczema covers a broad category of inflammatory skin conditions, all characterized by itching, redness, and scaling. Varieties of eczema include atopic dermatitis, allergic (eg. poison ivy) and irritant contact dermatitis, nummular (coin-shaped) eczema, seborrheic dermatitis, and dyshidrotic eczema. These conditions can have an acute onset characterized by fluid filled small blisters (vesicles) or a more chronic onset with increased skin thickness, scaling, and accentuation of the skin lines. The impact of all forms of eczema can be substantial, leading to work absences or disability, social stigmatization, and psychosocial distress.