Hi there, I have noticed a lot of posts on ferret sneezing, sluggishness, and colds, so I thought I would respond openly. Roxana started sneezing violently right after Christmas. I thought it would pass, and was unable to even get out of bed since I was sick with the flu. Feeling better the next day, I got her out of the cage and noticed her body was warmer than normal and she was still sneezing. Well, to make a long story short, I called Kelleen and she recommended I give her Children's Benadryl (alcohol free) about 1/2 to 1 cc every 3-4 hours, depending on her weight. I got some Children's Allergy Benadryl (same main ingredient) and gave her between 1/2 cc and 1 cc. Instead of giving it to her every 3-4 hours, I gave it to her when she would wake up and start sneezing again (about 5-6 hours). That way, I didn't have to wake her up and annoy her to give her medicine, better to just let her sleep as much as possible. However, since I have 3 ferrets, they seem to be passing it back and forth between them, so the vet gave me some antibiotics to give them. As far dosage, I gave Roxana between 1/2 and 1 cc because she is heavier than the others, even though she is the youngest. I gave Snoopy 1/2 cc since she is the lightest (vet weighs her at 1 3/4 lbs, though she doesn't feel that heavy). If you are not sure of the dosage, then go with the smallest. Kelleen told me to give her 1/2 cc and, if she is still sneezing after the first hour, give her another 1/2 cc. Also, make sure they eat and drink LOTS of water. I didn't have a problem with mine, but keep an eye on them. If you have any questions, let me know. Sometimes when I type something, I don't clarify as much as I should. Dee [Posted in FML issue 1809]