I am glad to hear that she is doing much better. Many of my birds have mild bumblefoot. I usually do not do the surgery unless they are limping, or have a red swollen abscess. Here are a couple of links with videos of the surgery and what to use:
https://the-chicken-chick.com/bumblefoot-causes-treatment-warning/
https://www.hobbyfarms.com/how-to-treat-bumblefoot-in-chickens-3/
https://the-chicken-chick.com/bumblefoot-causes-treatment-warning/
https://www.hobbyfarms.com/how-to-treat-bumblefoot-in-chickens-3/