Tom is tricked by Tom that he is suffering from measules. Jerry puts Tom in ice in a freezer, to cool him down as a cure. Tom is shivering in cold. When Jerry opens the door, Tom comes sliding as frozen as ice. Then Jerry puts Tom in oven as the cure requires for the patient to be in hot temperature. When door is opened, Tom is cooked is red hot temperature. Jerry then gives Tom a cold bath.
Tom looks in the mirror and sees the measles were drawn by Jerry. Tom feels like tricked and chases Jerry. When Tom finds Jerry, Jerry is sick, really with measles. Tom cleans himself with mouthwash and other things and Tom also catches measles.