Do not rub at the stain as you are washing it. This will only make the stain stick more to the shirt.
If you don’t have club soda or seltzer in your home, you can also use water.
If it is a garment like a scarf that you can lay flat, you do not need to put anything under the stain as long as you are sure that the stain isn’t touching any other portion of the fabric.
Make sure not to hang the piece of clothing out in the sun. The sun’s heat can also make the stain set into the garment.
You can also use a commercial stain remover. Make sure that you can use this remover with whatever fabric you are treating.
Don’t use your fingernail to scratch at the garment. This could make the stain set and also damage the fibers of the material.
You can find glycerin at pharmacies like CVS or Walgreens.
Make sure that your garment can withstand bleach. Some delicate fabrics can be damaged by bleach. Only use bleach if your garment is white. If not, it could alter the color of the garment. Only use bleach if you have already tried out other methods of removing the stain. Bleach should be last resort because it can change the appearance of clothing.
Hydrogen peroxide is a lifting agent, so it can lighten clothing. You may want to use it only on clothes that are already light-colored or white. Like bleach, use hydrogen peroxide only if you have tried other methods of removing the stain.
Make sure to use a white cloth. Hydrogen peroxide will lighten material that isn’t white. [3] X Research source