I just took in some rehomed fish from another person. We were both loading the fish into totes for transfer. When I got home I noticed one of the koi had a big wound near its mouth where some of the skin peeled back. It is a fairly large piece of skin hanging loose. I was going to sedate and treat the fish with iodine, neosporin and liquid bandage hoping to help him out. My question is do you think that will work and should I remove the loose skin that is hanging before I treat the fish??