Since it’s an infection is an antibiotic needed?
This is only based off of my personal experience and what I read while treating my hen. I would first try the epsom soaks, if you don't see improvement then I would go forward with removing the infection, packing the wound with antibiotic ointment, wrapping with vetwrap (the stretchy wrap that sticks to itself without adhesive) try to keep area clean as it heals and you can administer antibiotics to prevent secondary infection. I would only go the extra steps if at first you don't succeed personally.