In a spray bottle, mix a small amount of laundry detergent in with fresh hydrogen peroxide, and gently shake it to mix it. Spray on the stain; it will start bubbling up. You don't even need to scrub or rinse; just throw in the washer on cold, and it will come out. This works for all protein-based stains (blood, pet stains, etc), and even red wine. If you have cats that leave a hairball on the carpet (even white carpet), you can spray the mixture directly on and just wipe it up with a paper towel - no rinsing.
I have a cabin rental company and we find blood on sheets all the time. Even after they have been washed and dried I will spray them first with greased lightning, let it set for a while then pour peroxide on the stain. You may be pleasantly surprised.
In the future, if the blood has not been set in-just pour perixide on the stain.
In the future, if the blood has not been set in-just pour perixide on the stain.
In a spray bottle, mix a small amount of laundry detergent in with fresh hydrogen peroxide, and gently shake it to mix it. Spray on the stain; it will start bubbling up. You don't even need to scrub or rinse; just throw in the washer on cold, and it will come out.
I suggest a good oxygen cleanser, but test it on an area not typically seen first for color fastness. Also club soda works well if it is not dried on.