I found one of the best tools for the job was a fat bodkin (or wool needle), I insert the eyed end and use it to fish out any hard lumps out of reach that I can't get tweezers in to
My hen doesn't bend her toes either but that is most likely to be nerve/tendon damage. I believe that a long term infection can eat away at the tendon sheaths, causing limited use. Mine can feel her toes, ie if you poke each toe with a blunt instrument, she will retract her whole leg, not just...
I alternate with layers pellets and layers mash, primarily because they don't touch grit if I put it out for them and it's easier to add it to the mash with a bit of sweetcorn and crushed eggshell thrown in and then I add boiling water and leave it to steep before putting it out still slightly...
She got it back last week. I was checking her over to make sure she was okay because I had a fair idea I hadn't got it all because her foot was still an odd shape and sure enough, this time there was a black scab and I removed it and there was another kernel. I know it's going to be a long...
I was given a chicken just over two weeks ago with this.
One thing I'd like to point out though, they don't always have the black scab. Even to a novice like myself, it was obvious it was an abcess even though the first vet to see her disagreed.
Admittedly the first vet did tell me that she knew...