bumblefoot question on healing

[Jsnick]

Hi,
I have one hen that had bumblefoot, I soaked her twice and the scab peeled off but no kernel came out, is this normal or will there be a kernel? When will I know it's healed and don't have to wrap/treat anymore?
Thanks for help!!

 

[Jsnick]

Hi,
I have one hen that had bumblefoot, I soaked her twice and the scab peeled off but no kernel came out, is this normal or will there be a kernel? When will I know it's healed and don't have to wrap/treat anymore?
Thanks for help!!

Below are picture