My poor roo Foghorn had to be isolated due to bloody behind (I was told my other chickens may have pulled his"blood"feathers? Idk a lot about chickens as this is my first flock so I am still learning very much. I have him isolated bc they kept picking his bloody rear. Well now he is showing little soecks of black on his comb. Originally I assumed he had been picked at and it left a little scab. But they have gotten larger and I am beginning to worry it is fowl pox? Any advice please! Poor guy is falling apart on me and I need help nursinghim back to health!!