To remove underarm deodorant stains on clothing, use cool water and a white vinegar rinse. White deodorant stains are most evident on dark-colored clothes. Deodorant stains should never be ironed, as heat may cause the stains to become permanent.Continue Reading
Fill the washing machine with cool water, but don't set it to spin. Add a cup of white vinegar to the water and swirl it around.
Submerge the stained clothes in the water. Allow them to soak for about 30 minutes to loosen the stains.
Drain the washing machine to remove the vinegar, but leave the clothes in the machine. Wash them again in cold water, this time letting the cycle complete.