Soak her feet in a hot water bath, it's the right temperature when you can put your hand and wrist into the water, swish it around a bit and not get burnt. Epsom salt in the water is a plus. Let her soak there for 15 to 20 minutes, do not allow her to drink the water as it is a laxative and will give her the 'squirts'. When you get her out of her bath, briskly rub her feet with an old terry cloth rag, top and bottom starting at the leg and rubbing downward towards her toes (one direction, not back and forth). You are hoping to get a good view of the trouble spot and soften the skin, and with a stroke of luck manage to pop the bumblefoot scab off of the wound without cutting; perhaps a firm yet gentle squeeze, like you'd do for a blackhead to encourage the cheesy-plug-like pus ball to pop out. You can do this daily for a few days while you search for an AVIAN veterinarian (bird specialist). If you're really lucky, you can get it to simply pop open, and will then be able to squeeze out the infection. Bird pus is not runny like human pus. It is thick, cheesy, doughy. Once opened, either by the above outlined method or a quick slit across the inflamed pocket, it's a very straightforward, quick and easy 'operation'. Be advised that sedating birds is extremely risky, and if the vet says you shouldn't do it, then don't do it. The pain in that foot is worse than the surgery, so just getting that spot opened and drained is going to feel MUCH better. You can give her a baby aspirin once the bleeding has stopped for pain.