Pour vodka into a small spray bottle and close the spray bottle. Or, dilute the vodka with water using one part vodka and one part water.
Hang your garment in a well-ventilated area. Spray a few spritzes of the vodka mixture onto the garment. You may want to spot test the garment with the mixture first, especially if it is a delicate fabric.
Let the garment dry in the well-ventilated area. The vodka won't leave a smell and will kill any bacteria that has attached itself to the clothing.