Definition of resistor. : a device that has electrical resistance and that is used in an electric circuit for protection, operation, or current control.
Other skin conditions that result in dry, thickened skin on the foot include athlete's foot (tinea pedis), leg vein problems (venous stasis), psoriasis, and skin rashes caused by allergy or irritants. A common cause of dry, scaly skin and accentuated skin lines on a child's feet is the condition atopic dermatitis. 1  Photos and descriptions of eczema, atopic dermatitis, contact dermatitis, and athlete's foot.  Physical Stress: The environment inside a shoe can get very hot -- sometimes well over 120 degrees.
Dandruff, or sebhorreic dermatitis, can cause your scalp to itch and shed flakes of dry skin. Dandruff has a variety of causes, from shampooing your hair too often or not often enough, to sensitivity to washing and styling products. Medical problems like eczema and psoriasis also can result in an itchy flaky scalp.