Got rid of the durn things but got re-infested by the automobiles so got to start from scratch again. Just a word about the post-treatment itching. I had it bad after permethrin treatments. Found out it was because I was so allergic to the eggs laid under the skin. Sulfur helped stop the itch immediately. I purchase it cheaply from a bonsai seller and used 2 0z mixed with a thick hand cream as a salve. It kills them critters as well, but smells and can stain until it gets dry. Can be mixed with body wash in the same concentration for showers. My husband recently bought the lime sulphur dip for dogs and it is full strength. I have 4 long haired pomeranians that are the dickens to treat safely. I hope to try the enzymes on them. Now, someone please tell me how to gain everyone's FULL co-operation in treating these vermin. One member of my family has threatened to shut me up permanently if I mention it again and he is covered with them all over his back and spreading them. Woe is me.