Weird wound on roosters comb? And strange patch on bum?

[RussianChickens]

Nustock is a farm store cream made out of sulfur and pine tar, and it works wonders on vent gleet, scaley leg mites, and any raw areas from feather loss or pecking. It is also an anti-fungal because of the sulfur. Works great although a bit strong smelling.

Thank you! I will try that!