I’ve always had a lot of lucky with Scarlet Oil. Just put a thick layer of Vaseline around the wound to keep it from running and then spray the area.
I haven’t had any injuries with wire, but I have used it on proud flesh wounds on bony areas (horse stepped on himself from the medial side of the knee down to the pastern in the trailer skinning his entire leg basically), plus a couple others
Also had a very fat pony that rolled on a large hot rock (so we think) that burned his skin the size of a dinner plate. It ended up getting infected. Had pock marks with hard puss granules and was very oozy (I secretly loved it)…All I did was clean it up with a hot towel every morning and cover it in the scarlet oil. It cleared up in probably a week and then continued using it every other day for about two weeks and eventually all the hair grew back normal.
I wish you luck! Very scary when things like this happen! especially in areas that are hard to heal like legs!