This will help stop any bleeding in the muscles, reduce pain, reduce inflammation and have a muscle relaxing effect when the ice is removed. (sportsinjuryclinic.net)
If you don't stop the bleeding because you are worried about a scar, that's nuts. (nomorecreditcards.com)
If the nail is completely ripped off, some gentle pressure applied to the area for 1 to 2 minutes helps stop the bleeding. (smallanimalchanel.com)