Chicken with Yellow Crust on His Comb

[Turkey Girl]

Hello! A few days ago we bought a Serama Roo and when we got home, I noticed he had some yellow crust on his comb. I have sprayed it twice with Vetericyn, but I don't think it's done anything. I also noticed that he spends most of the day napping on the roost, but I think that might have something to do with the fact that before we bought him, he lived in a cage. Thanks for your help!

~Turkey Girl

 

[Gallinarium]

Pictures? The first thing I thought of when I read the title is egg eating.

 

[Turkey Girl]

I'll get some. It could be egg-eating from the last owner, but he hasn't seen any hens or roos since we got him, because we are keeping him separate for about a week so I'm not sure. Thank you for your help!