I've done a search but was not able to find information on this particular issue..... I took my Shih Tzu to a new groomer today. When I picked him up she told me she thought he had mange. Of course I freaked out, and said "He's never had any type of skin problem, ever". She showed me a swelling on his ear, and said she thought it was mange. I would have thought it was an abcess/infection from a wound, or insect bite, but there doesn't seem to be any puncture mark. It feels like a fluid-filled section about the size of a dime. Has anyone ever heard of this? I read that some treat mange with Ivermectin. Advice, please! Of course I will take him to the vet if necessary, but I'd prefer to doctor him myself, if possible. Almost forgot--this does not appear to itch or cause him any problem.