Abstract: A doll in which an illness symptom is created, a treatment is administered and in which the treatment removes the symptom. One symptom is a fever produced by closing a switch which heats the doll's forehead and moving a member near an orifice of the doll's body, the forehead temperature being recognizable by touch and the oral or other indication being detectable by a simulated thermometer. The treatment comprising insertion of a spoon or simulated pill to open the switch and restore the member. Measles (roseola) is simulated by closing a switch to illuminate translucent portions in the body, presenting the appearance of spots. Mumps is simulated by inflating portions of the cheeks and neck, treatment comprising moving a valve member to slowly deflate the portions. Tachycardia is produced by changing the speed of a motor which drives a heartbeat simulating device. Cough-like sound will be produced by recording devices.