Something is spreading slowly on my chicken comb

[munz]

He got this infection on his comb after fighting with an another rooster.And some times this infection also gets black a littel bit.And now this infection is also spreading on the other side of the comb

 

[Eggcessive]

That looks a bit like dry fowl pox which is a virus spread by mosquitoes. It lasts about 3-5 weeks and goes away, leaving the chicken immune to it later. There is not much that you can do for treatment, but some will use iodine on the scabs to help dry them out. It can look different on every chicken, so here are a couple of links to read with pictures:
https://www.backyardchickens.com/a/avian-pox-how-to-treat-your-chickens-for-avian-pox
http://www.merckmanuals.com/vet/poultry/fowlpox/fowlpox_in_chickens_and_turkeys.html

 

[munz]

It has been more than 5 weeks but this infection is not going rather it is spreading. But he is still healthy no problems or loss of appetite

 

[Eggcessive]

Then I would treat with miconazole or other anti-fungal cream daily for favus which is a fungal infection. Fow pox can be spread from one chicken to another by mosquitoes. If you treat for favus, it shouldn't hurt, but it still looks like fowl pox. Favus is usally white to garish black, but sometimes can look brown. Below is a picture that was determined to be favus post 40388 of this thread: https://www.backyardchickens.com/t/383387/marans-thread-breed-discussion-pictures-are-welcome/43608 . Here are more links to look at on fowl pox: http://partnersah.vet.cornell.edu/avian-atlas/search/disease/510

Photo from Desertmarcy of BYC

 

[munz]

I have a hen also but she is fine if he has fowl pox so the hen would have also been infected but she is fine

 

[Eggcessive]

It's possible to have only one chicken with fowl pox if you live in an area where it isn't a common disease. The only pox I have seen has been a single scab on the comb of a chicken. Favus in contagious since it is caused by a fungus. There is no harm in treating it with miconazole, lotrimin, or similar antifungal medicines just in case.

 

[kittydoc]

We had a single case of dry fowl pox in a cockerel a few years ago. He was a runt we bought st TSC, but none of our other chickens became infected. It took him at least 2 months to clear it, but he never seemed ill and did catch up on size eventually. It's worse in hens, since it csn stop egg production. The wet form is more serious. There are effective vaccines available for fowl pox.

 

[munz]

ok.. thank u .. i applied oil on it the crust is now removing