Just speaking with my vet the other day and the conversation came up of the
black heads.  He told me to use distilled white vinigar.  He said it is
cheap, natural, and will not hurt the ferrets if licked off.
 
I haven't tried this, but if anybody does, please let us know if it works!
 
Amy Flemming
Flemming Farms
http://www.geocities.com/heartland/ranch/9521
[Posted in FML issue 2470]