I agree with speckled on the issue of antibiotics. I avoid their use as much as possible because if you use them for something that is not really there or is from a non bacterial cause, you risk not having he antibiotics work when you really need them.
Chickens can get food, dirt, grass stuck in the funniest ways on their heads and they can't really do anything about it... I had a rose comb roo have a piece of grass hay stuck in a crevice over his nares and under his comb.
Observe him for a day or so and check out his air way before medicating. Good luck. Hope it's just some boogies in the nares.
Chickens can get food, dirt, grass stuck in the funniest ways on their heads and they can't really do anything about it... I had a rose comb roo have a piece of grass hay stuck in a crevice over his nares and under his comb.

Observe him for a day or so and check out his air way before medicating. Good luck. Hope it's just some boogies in the nares.