Hi there. We recently picked up two chicks from our local chicken supply store. Had them both for a week or so now, and while one seems very healthy - active, eating a ton, drinking normally - the other has been sneezing, shaking her head and lethargic for 3-4 days now. I’ve given both of them probiotics and electrolytes in drinking water, increases brooder temp and added paper towels over pine chips to eliminate dust. Went to the chicken supply store and was talked out of Tylan 50, but she seems to be getting worse and I’m noticing watery/bubbly eyes. Looks like people have also suggested Oxine in other threads if other chicks seem to be doing well/not infected. Any thoughts?