Last week as I was putting my chickens in for the night I noticed a gurgling and they seemed to be sniffling. I went and saw the Chicken Dr at the Sussex County fair and picked up some antibiotics. So they have been on them for almost 4 days. I do not hear the gurgling but they look like their nose has crust on it and this morning one of the hens had an eye that was closed. I am sick that something is wrong with my girls. Please help me get them through this. I did buy some Pet RX and was thinking of trying that to hopefully clear out their nostrils, but what do I do about her eye??