Stopping the smell that is coming from your refrigerator involves first finding out exactly where the smell is originating. It could be coming from a container of food that has started to spoil. Likewise, mold or mildew could have built up on the inside of your refrigerator and the smell is a negative side effect. Whatever the reason, you can stop smells in your refrigerator in a few specific ways.
Go through your refrigerator and throw out any type of food that has been sitting around for too long. If you ordered Chinese food two weeks ago and haven't gotten around to eating it, it is likely contributing to the smell you're experiencing and needs to be disposed of. Throw out anything that's old and is no longer edible. Getting rid of the source of smells goes a long way toward getting rid of the smell itself.
Remove everything from your refrigerator, including metal racks, and wipe down the inside with a rag and soapy water. Use this method to remove any mold or mildew that may have accumulated on the inside of the door. When you're done wiping it down, use a dry cloth to dry the excess water from the inside of the refrigerator to make sure no additional mold or mildew has a chance to form.
Open a box of baking soda and put it in your refrigerator, either in a compartment on the door or on the back of one of the metal racks on which you set food. Baking soda has the ability to get rid of strong odors coming from your refrigerator by balancing out the alkalinity of the air. After removing excess foods and cleaning the fridge, any odors left over will likely be removed by the baking soda.