Getting stains out of expensive lingerie isn't impossible. If you get your period on your favorite new panties, don't fret. Here are a few ways to rescue them and make them like new again.
Soap And Water Method
First: don't run it under hot water because that will make it worse. Dab it with (or run it under a faucet of) cool water. Use regular hand soap or bar soap from lathering the stain, rubbing it with a soft cloth, a brush, or a sponge. Rinse out all of the soap with cold water. Repeat the process if you need to.
Put the item through a regular laundry cycle, set it to "cool (or cold) water." Air-dry the item. The heat from using a dryer can stop the stain from fading. Hang it up somewhere it can drip dry. If it hasn't disappeared entirely, try washing it in the same way, a second time.
Don't iron the clothing if the stain is still visible. Repeat washing it, instead.
Salt And Water Method
Start by rinsing the stain with cold water. Alternately, blot the stain with a wet towel soaked with cold water.
Make a paste of salt with just enough water to hold together, about one part cold water to two parts salt. Using either your hand or a clean cloth, apply the paste to the stain by rubbing the paste into the stain gently. When you start to see the stain let up, launder as usual -- using only cold water. (once again, never use warm or hot water on blood stains). If the stain is gone, let the fabric air dry. If not, repeat the process.
Ammonia Method (For Stubborn Stains)
In ½ cup of cold water, dilute one tablespoon of ammonia. Don't use ammonia on any kind of delicate fabric, such as silk, satin, linen, or wool. Fabrics like cotton or polyester should be ok to use with ammonia.
Pour the ammonia mixture directly on the stain, and allow it to sit for a few minutes. Make sure to pour the ammonia mixture only on the stain, avoiding the rest of the clothing. If you accidentally get ammonia on some unstained fabric, rinse it with cold water and start again.
Allow the diluted ammonia to sit on the stain for a few minutes to work. Rinse with cold water, and repeat if necessary.
Wash your garment in the usual manner. If you wash the clothing in the washing machine, make sure to use cold water only. If the stain isn't gone after washing, try using an enzyme-based detergent spray for tough stains (Spray N; Wash, OxyClean Spray) instead of your regular detergent. Allow the garment to drip dry. Don't put it through the drier or any heat until you know the stain is gone.
H2O2 Method (For Stubborn Stains)
Rael teaches how to remove period stains, like the Hydrogen Peroxide method. Initially, check the colorfastness of the fabric by putting hydrogen peroxide on a small spot of your clothing with a cotton swab. Hydrogen peroxide may bleach some fabrics, so use some care before using.
If you are washing silk or other delicate fabrics, dilute hydrogen peroxide with equal parts water (50% hydrogen peroxide to 50% water). Test it out on an area of the material that doesn't show to see if it fades.
If the stain is not on delicate fabric, pour hydrogen peroxide directly onto the bloodstain. Try to avoid getting it anywhere else on the material where there is no stain. The H2O2 will begin to foam up when it reacts with the blood. Rub in the hydrogen peroxide gently with your hands until the stain is fully saturated.
Blot off the liquid with a dry cloth. If needed, repeat. Use more hydrogen peroxide, if required. Wipe the stain with a clean, dry cloth between each application.