There are a few different ways to reheat corn on the cob. The ear of corn can be placed in a microwave with a cup of water and cooked for about 2 minutes on high. It can also be wrapped in a wet paper towel in the microwave.
A more traditional way to reheat leftover corn on the cob involves placing the ears in a pot of boiling water on the stove until hot. Leftover corn can also be cooked in the oven by brushing the ears with butter, wrapping with foil and cooking at 425 degrees Fahrenheit for about 30 minutes.