I read to do epsom salts and warm water to clean a vent of a sick chicken. It is white on her back side and she is acting normal eating and drinking just not roosting with the others. It is cold here and we are getting 14" of snow and how can I savely clean her in 30-31 degree weather? I have a laundry sink inside to soak her, but how do I dry her off to get her back in the coop with the flock?