She is sneezing, very congested. Eating and drinking is fine. Laid egg yesterday at the poultry show. I tried Duromycin but they refused the water (as did they refuse the electrolyte water) and I learned NOT to give to over 16wk of age. They didn't get enough to harm them & I stopped right away (900ml water with half tsp-- 2 got less than 1ml dropper & sick got 1.25ml dropper) I also have VetRX I tried tonight as well, seem to work as she let me drop it her beak. Only treated her. Please help!! These girls are quarantined this week BTW. They are the pickiest girls we have so far ugggh. Any other suggestions ya'll can give me.