I like the video and agree with Bob that hydrogen peroxide is not great to use.
Bandaging for bumblefoot should help the chicken keep weight off the infected area. So you need to create a ring/donut with the abscess in the hole in the middle.
Then the bandaging is to keep the ring in place and to cover the open area of the foot to keep it clean.
I am attaching a link to the first post in a thread that has some good pictures of the ring/donut approach. Look at post #3 and #8 and I think you will get the idea.
The creator of that thread used a slice of pipe insulation which I think is genius!
https://www.backyardchickens.com/threads/bumblefoot-cure.915880/
In full transparency my foot bandaging experience is not actually bumblefoot but was similar in that I had to bandage a 'prosthesis' in the form of a boot onto Bernadette's foot when she was tiny. Instead of a boot you will be using a pipe insulation donut.
A few general words about bandaging - you are probably already familiar as you say you are good with bandaging. But just in case:
- Vet wrap is great but it does come off so keep a close eye
- Don't use red vet wrap - like in the video blue is great on chickens
- Cut many strips ahead of time - some narrower than the roll of vet wrap
- Don't try to achieve too much with one strip - my guess is you will need a couple of strips to keep the donut attached to the bottom of the foot and another to cover it over
- Try and make sure the toes are in a more-or-less natural position - particularly the back toe is easy to overlook
- Always check the foot in the bandage an hour or so after to check that the toes are still warm because your biggest danger is cutting off circulation by wrapping too tight.
- Change out the bandaging daily if you can - you will need to do that anyway as you should be soaking and using the drawing salve every day. Patience is key!
Good luck!