If fresh sponge the stain with. I highly recommend you use peroxide to get blood out of a white comforter.
Then follow the next instruction.
How to get period blood out of a blanket. Once it has dried remove the rest of the residue using a brush. Fold a white towel until it is eight or more layers thick. Spray the mixture onto the stain wait 5 minutes then rinse it off.
Close the bottle and shake it to mix. Blood contains hemoglobin which helps it to clot and seal wounds. If you need to get blood out of jeans the approach is slightly different.
If residual blood remains lather up some soap and scrub the. Make your own stain remover using baking soda hydrogen peroxide and water. Soak a washcloth in cold water wring it.
If you re wondering why period blood is so hard to get out of sheets i asked an expert on your behalf. Put it under the stain. Fill a spray bottle with 1 part baking soda 1 part hydrogen peroxide and part cold water.
If the stain is super fresh place it under cold running water to flush out as much of the blood as possible. You will need to make a cornstarch or baking soda paste by mixing a tablespoon with cold water. Since the fabric is thick you ll start by blotting the stain from the inside.
Place the cloth towel sheet or any garment out in the sun to dry. Put the fabric under cold or lukewarm running water in your sink or bathtub letting the force of the water itself dissolve the blood. Soak the stain in cold water as quickly as possible.
Apply the paste on the stain and rub it gently.