not being a smart a$$, but clean any dried or clotted blood from around the area and use super glue. it will burn, but military rumor was, that's what super glue was invented for in WW II was for battle field wound dressing to help stop small wounds.
that's basically what they use now is a kind that dissolves on us. My brother busted the side of his forehead open here while back and they used that instead of stitches. For parts that have little skin or where you can't use stitches.