We've have a few dogs in our rescue that had or are getting over Demodex mange. Thats not contagious. Its the Sarcoptic mange that is the one to worry about I believe. One of our pits looked horrible but for the last 4 months or so has looked georgous. Lindsey is being cured now, and she had nearly no hair at first. her coat is coming back. I believe the gal that has her said its being treated with PetsBestRx Demodectic Mange Treatment - Kennel Combo http://shop.qbased.com/non-toxic-pet...-p/pbpk046.htm But I hear stressful situations can bring it on. You catch it early and deal with it. Everything will be fine. Tippy is sooooooo pretty.