I've been watching this as I also have a chick who is sneezing and rasping when breathing anytime she is picked up. I do not think I could inject her as she is only 6-8 days old. Though I am suspecting that mine has inhaled some water or is bothered by the bedding dust as she is very energetic and lively despite the sneezing and it came on very suddenly. I am giving her vitamin drops in food and water so maybe it will be a boost to her immune system to overcome an infection or possible infection as she had a very bad trip being delivered, and will begin treating her with ornacycline if it continues for more than 24 hours. Please keep posting updates IrishAcreFarm and cluckcluckluke.