How does the skin look adjacent to the wounds, especially near the pussy area? If it's not red and swollen looking, pus is normal in the healing process. Pus is made up of white blood cells that are hunting down and expelling bacteria. When the intact skin around the wound turns red and swollen, it's a sign that the chicken's immune system is being overwhelmed by bacteria and probably needs help from an antibiotic.
As long as you continue to flush the wound every day, you are helping your hen to fight bacteria. The Vetericyn and antibiotic ointment should be plenty to tackle any bacteria that is still trying to colonize the wounds.
Remember, as long as you don't see any red skin, your hen is doing well. Keep an eye on the comb and wattles. If they change to a bright, cherry red, it's indication of a fever, which could indicate infection. You might want to phone a vet tomorrow and ask for an antibiotic to be safe, just in case you need it.
Also, make sure your hen is drinking water. It's easy for her to get dehydrated with large, deep wounds. Electrolytes in the water can't hurt.