Use saliva to clean delicate fabrics. Using saliva can be an effective way to remove blood stains, because the enzymes in saliva that help digest food also break down the proteins in blood, and it’s those proteins that make blood so difficult to clean. (best used on small stains). Gather some spit in your mouth. Spit on the blood-stained area. Rub the stains out. Soak the fabric in cold water.
Try hydrogen peroxide next. This only works with wet blood. Before deciding to use hydrogen peroxide, note that it may bleach certain fabrics, and can cause stains itself. So use it cautiously, pretest the hydrogen peroxide on a small area of the stained item.
Dilute the hydrogen peroxide with 50% water if you are treating delicate fabrics. Take care not to let the foam spread outside the original stain area, pour hydrogen peroxide on the stain.
Wipe away the foam using a cloth and pour on a bit of hydrogen peroxide again until the stain is gone or extremely faint.
Wash the item with cold water and your normal soap or detergent.
You can also soak the entire garment in a bowl of hydrogen peroxide. Let it sit for 15 to 20 minutes. Remove the clothing and rinse it out in cold water.
Use toothpaste on clothes and linens. This method is best used on fabrics that can be washed in a washing machine or thoroughly washed by hand or machine. Apply toothpaste on the blood-stained area. Let the toothpaste dry. Rinse the toothpaste away with cold water. Wash the stained area with soap and rinse thoroughly with cold water. Repeat if necessary.