I'm sorry your budgie's bumblefoot condition is getting worse.
Did you take her to the avian vet for the professional advice and treatment plan for her specific case?
For the treatment to be effective, you must give the medication directly into the beak by using a dropper or small syringe.
Since your budgie is not tame, you can create a more relaxing atmosphere for her by covering the cage on 3 sides, having some music on and by reducing the amount of sunlight in the room she is in. By making the room darker, she will let her guard down and prepare to nap. Then you will slowly open the cage's door and carefully catch her by using a small cloth or towel.
The information below should be useful:
In order to provide your budgie some relief, you can pad the perches with some vet wrap and also cushion the cage's bottom with a towel in case your budgie already has mobility problems and the chances for her to fall down are higher.
You can also lower the height on the perches and have add a couple of flat platform perches for her to rest her feet.
I hope your budgie's condition will improve soon. Good luck!
Regarding creating a new thread, you can check this link: https://talkbudgies.com/how-guides/49...te-thread.html