Underarm stains caused by deodorant and sweat can be removed with vinegar, liquid dish detergent and salt. The vinegar and salt mixture is applied to the garment, then allowed to remain until the stain is no longer visible. The clothing should be washed as usual after the stain has been removed.Continue Reading
Make a cleaning solution with 2 cups of warm water, 2 tablespoons of liquid dish detergent, 1 cup of salt and 2 cups of white vinegar. Mix the solution until the salt has dissolved.
Pour a small amount of the cleaning solution onto the underarm area of the shirt. Scrub the stained area gently until the dish detergent makes suds, then allow the shirt to soak for up to 2 hours before rinsing.
Allow the garment to air dry, then check the underarm area for staining. If the stain is gone, wash the shirt as usual. Reapply the salt and vinegar solution if the stain is still visible, then rinse and allow the shirt to air dry.
After removing the underarm stains, wash and dry the shirt according to the directions on the care label.