I have a small flock of about 25 white silkies that are wheezing and sneezing. It has been miserable weather the last 2 days with rain, snow and cold temps. I noticed today that some were weezing and sneezing so i think they have some sort of cold. what course of action should i take, should i give them an antibiotic, or something like vetRX or just give a little garlic and let them fight it naturally. they were fine before this cold front and they are about 20 weeks old. any advise would be appreciated.