Your picture did not attach,,,, but I can still offer advice per your description.
Clean wound, with water, or alcohol. Alcohol does cause a stinging sensation for short time. If you think you can tolerate holding a chicken in slight discomfort for short time,,,,, go with the alcohol. Use cotton balls to apply if you have. Otherwise just pour over wound.
Then apply some of this lotion. Yes, it is people grade, but will work just fine on chickens, or other pets.
This is available at many stores, and under different brand names, as well as generic.
Walmart Equate is about ½ price of brand names.
Wrap wound with gauze, lightly,,, to keep dirt out. You may need to tape with athletic tape, or similar to keep it from falling off. Change, bandaging ,and check wound for healing daily. You may need to reapply Ointment until you can see wound healing, and closing up.
WISHING YOU BEST,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
