In my experience, and according to my vet, surgery can worsen bumblefoot. There is no always a "kernel" that can be removed, and especially when that is the case, there is a high likelihood the infection remains. Others on BYC have reportedly treated with surgery, but usually with the use of...
Without a doubt she needs antibiotics. Speaking from experience. Go to allbirdproducts.com and get Baytril 2.5%. It comes with a syringe for oral injections. Can be bought without a prescription. It is effective against gram-positive bacterial infections, which encompasses Bumblefoot. I’d do a...