Things You'll Need
Clean the stain immediately. The longer it sits, the less chance there is of removing it.
Baking soda is an effective agent for removing stains and odors from underwear. It is a natural product that won't bleach the underwear or cause irritation, but will clean it without causing harm to the fabric. When dealing with bodily secretions, it's important to wear gloves to protect yourself from germs and diseases. Wash the garment immediately after treating it with baking soda to kill the germs and clean it more thoroughly.
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Put on gloves. Wet the garment with cold water.
Cover the stain with baking soda.
Rub the baking soda into the stain with your fingers or a scrub brush. The water will make the baking soda become a paste. Rinse out the baking soda.
Repeat on the other side.
Repeat the entire process if the stain is still there. After the stain is gone, wash it in the washing machine.
Put on gloves. Rinse out the underwear with cold water.
Sprinkle baking soda on the stains and scrub with a small scrub brush.
Urine or Discharge Stain
Put on gloves and rinse the affected area.
Sprinkle baking soda over the stain and scrub with a scrub brush.
Rinse. Wash in the washing machine.