I noticed last night that my 7 month old RIR rooster had some shavings stuck to his nose, so obviously he has a snotty nose. This morning when I went out to further examine him, his nose had a big boogar on it . So I of coarse pulled it off. Instantly I could smell this odor, it was like pus. What the heck is going on? I do have another hen that has a runny nose with no odor. The mucus that is coming out of her nose is clear. His mucus wasn't clear. So what could it be? What do I treat it with? How long do I treat? Do I treat all of my chickens or just the ones that show signs? Or do I just cull them. Help I've never dealt with anything like this before. I can't afford to have this spread to my other 50 chickens, or the 50 new chicks that are being shipped to me next week and the 20 ducks that are hatching in the bator on Halloween.