IMPORTANT! To stop the odor you have to treat it at the source. Use ODORMED in shoes, gym bags, lockers, athletic gear. On anything that stinks. You can use it as a pre-spray prior to laundering really bad and smelly t-shirts or socks or as a pre-laundry soak. You can also add it to the wash cycle when washing clothes. Use 2-4 oz. depending on the size of the load. Need help? Email The Odor Doctor.