Take Original Pine-Sol and place it in a spray bottle....Simply spray the blood spot with the Pine-Sol and watch it disolve, if the blood stain is been there for a few days, then you may need to rub the Pine-Sol into the fabric...I used this on our new mattress after my Poodle bled on it.....It WORKED, no more blood spots....I have even used this on our sheets after cutting my leg while shaving the going to bed, getting blood spots on the sheet.....