My fish have a congestion inside his nose

[FUNNYBONE]

I noticed that one of my discus had a red nose when I bought them 5 weeks ago. Up to now there is no improvement for him (although all of them are very aggressive and growing fast). :D
I don't pay much attention to this symtom because there isn't any bad thing with my all fish. (This isn't infectious disease I guess). ::)
I remember one topic on this site has concerned with my question and somebody said it is bacterial infection. I wonder if it is right or not. Anyone know clearly about this please tell me why this disease doesn't spread and how to treat ? >:(
My heartfelt thanks to you all for reading my question ;D

[Carol_Roberts]

Sometimes it's a bacterial infection. Sometimes it's more like a bruise (bleeding under the skin) and takes time to go away.

[FUNNYBONE]

Thanks Carol very much ;D

[pcgamer02]

One of my discus as somewhat redish nostrils or whatever. She laid eggs a couple of days ago so I dont think anythign is wrong with her ;D

[Barb Newell]

I've had pigeon juveniles with that redness, looks like burst blood vessles or something. As they've grown to adults, it has disappeared. I never treated it with anything.

Barb