How to Remove Blood Stains From Fabric. Part of the series: Clothing & Fabric Stain Removal. Remove blood stains from fabric by blotting the stain with a paper towel, mixing a teaspoon of soap with a cup of hydrogen peroxide and sponging the fabric with the mixture. If the stain remains, wash the garment and try using an ammonia and water mixture with instructions from a stain specialist and mother of five in this free video on stain removal.