I have a recently acquired BBRed OEGB pullet in the quarantine barn. I received her via a 5 hour drive on Thursday afternoon. Ever since she arrived I noticed a little bit of sneezing here and there, which I just assumed was because of the new shavings and dust, along with the stress of the trip. Friday and Saturday she developed a bit of wheezing and nasal discharge. I have not had her on any treatments besides a vitaboost I usually administer through the water for the first few days to help with stress. I'm not noticing any "fowl" smells associated with infectious coryza, the pullet doesn't seem to be lethargic eats & drinks normally. Not sure what to try treating her with. My local feed store has both "Gallimycin" and "Tetracycline" which say to be effective against CRD. Which would any of you recommend to treat with? Thanks.