For the ferret people looking for help regarding fleas! I have found the best products to use for fleas is Advantage and Frontline. Many of the products you buy at the pet stores just plain don't work and you are wasting your money! I have always ordered mine over the internet but you can also get them from your vet and I have seen advantage sometimes at pet stores. Hope this helps, I know it works at my house and I have used these on cats, dogs, and ferrets. Charleen and the Wa. Tails [Posted in FML issue 4603]