Hi all! for a couple months I have noticed my ladies letting out an occational sneeze, I shrugged it off not thinking much of it at first but now I am starting to pay more attention. I'm not sure if its allergies or something more. We use pine shavings as litter and have plenty of coop ventilation plus leave them out in the run all day. I have been reading into using Denagard (see link) for disease prevention once a month. Has anyone had any experience with this or is a sneeze nothing to worry about? http://www.qcsupply.com/denagard-liquid-concentrate-novartis.html?gclid=CNaprdDsrKgCFRRigwodMD43HA Thanks!