What does bumblefoot look like?

[Ol'FashionHen]

I have noticed my SLW hen has been favoring one of her feet lately. She is one of my skittish girls and does not fancy being touched, so I have been trying to follow her some to see if she has any swelling etc.. Yesturday I noticed it is swelling some, right in the pad of her foot, she is really careful with it and now limps some.
Is this bumblefoot? How do I find out if it is, and if so, what do I need to do to get her foot back in good health?

 

[Big Red's Mom]

I am not expert but Bumble Foot is a small to large round scab on the bottom of the foot. I had a EE that had it and she is getting better almost perfect. I noticed that I have another hen BR/WR mix with it now.

I used Epsom salt and Betadine in worm water to soak the feet for about 10 to 15 mins. Patted dry. Then you have to get the Plug out (gross)

Then soak again in new solution. Dry foot put antibotic oint in hole a small piece of gauze pad and wrap with vetwrap. Soak and change bandage every day. You should see an improvement.
Most people say to separate the bird.