Drying blood off of skin is a simple and effective way to clean it. First, take a cloth and place it over the area where you plan to dry the blood. Next, place a pot or pan of water on the cloth and wait until it boils. Then, pour the boiling water over the cloth and let it sit for a few minutes. The boiling water will help to break down any clumps of dried blood that are on the cloth. Finally, use a clean piece of paper to dry the blood off of your skin.
