Tenterment

Maybe I just did it incorrectly, but my character is white, but got covered in blood after some altercations with zombies and I found soap and intended to cleanse myself with it. However, when I did so the soap was used by my character's model did not remove the blood that covered him at all. I don't know if this is known or not, or maybe I misinterpreted something, but I figured I would post here just in case.