My vet recently told me that I could use straight ivermectin 1 drop per ear for ear mites. He read that lots of vets do this fir their ferret patients. I've been told by another that it had to be diluted with propylene glycol. If it does have to be diluted what is the ratio and dosage? I've also heard that Frontline Spray also does the job. We do not have a problem with fleas and are looking for an inexpensive preventative for mites for all the shelter kids here. Thank you. Kim [Posted in FML 7448]