Weird foot rash?

[ChellyRod]

Hi all. I was hanging out with my hen today when I noticed her weird foot. The other one was wrapped up due to a bumble foot. But her leg (towards her thigh looked healthy and nothing like this! Her weird leg looks like she has lost some scales, and it looks like a rash. Do hens shed their scales? What is this?! Please help

 

[Kalimak]

Looks like scale mites to me..Vaseline (petroleum) is a known treatment for them, but I'm not sure about the application when there's raw spots on the legs. The experts here will sure help out. Hope she gets well very soon.