My baby Jack, an English bulldog puppy developed demodex after a very long surgery which depressed his immune system and he could not fight off the mites. I had to put him on ivermectin for 30 days go back have a skin scraping and do another 30 days of meds to make sure the mites were under control. Thank god for Embrace, they always come through and save the day. I could not have done what was right for my Baby Jack without them! Thank yo Embracers!