Deja Vu, we went out two days ago and found a very similar wound on the other side of the forelock on Bourbon our ten year old palamino gelding(seems to be a palamino thing, just kidding). We rinse with a povidone iodine solution diluted to the color of light ice tea, then apply Vetricyn infection spray gel(the stuff is amazing). Let it dry then apply Furazone oinment at night, or Swat during the day. Every wound we have treated with Vetricyn has healed beautifully with no infection and minimal if any scarring. Bourbon's injury was courtesy of his paddock mate Midnight who bit him. Midnight is in solitary and Bourbon has a new paddock mate.
Cherie: I would have LOVED to have it sutured, however, it was too late and I don't have a limitless bank account for new skin sutures option