A dynamic infant head support for preventing, or correcting, the abnormal shape of a head of an infant, and a method of using the support for treating deformational plagiocephaly. The support is an oval-shaped pillow, with a central opening to receive the head of the infant to be treated. Spaced barriers divide the interior of the pillow into a plurality of compartments. A ring-like manifold passes through the interior of the pillow and communicates with each compartment. A plurality of valves is operatively associated with the manifold; one valve is located in each compartment. The valves allow fluid, such as pressurized air, in the manifold, to inflate individual compartments. The manifold is pressurized by a pump, at a remote location; a heater warms the pressurized air. A remote controller is connected to the valves by electrical leads. The controller governs the sequence of operation of the valves, and regulates the duration of time that each valve is open. The controller may be programmed, to inflate or expand the compartments in the pillow, to gently lift, and mildly turn, the head of the infant positioned thereon, thus combating the abnormal shape or deformation.