@Pastel The Rooster
Glad you were able to upload the pictures. I agree with Bob. It is definitely bumblefoot and not yet a systemic infection so doesn't need oral antibiotics.
But what it does need is a LOT of patience and diligence.
So a nice soak every day without fail. The video Bob posted showed a 5gallon bucket. You can also use something shallower like a dish washing bowl as long as you can get her to stay in there calmly for a nice long time so the skin on her foot gets nice and soft.
Then, after the soak, you need to do the bandaging using the donut/ring to keep pressure off that part in the middle.
At this stage keeping the pressure off and softening the skin with the soaking are the most important things to do.
In a day or so you can start using the drawing salve (I think most people use Prid - but post a picture here of what you have/can get so we can help you make sure you have the right thing). You don't need to start the drawing salve today so take your time to get the right stuff. You do need to start soaking today if possible!
Keep posting us pictures of progress - I don't think you should try to remove it until you have done many days of soaking, drawing salve, donut bandaging. And, as Bob said, you will likely need a second pair of hands when you get to the removing stage.