You can’t see scabies mites unless you have a microscope, Dr. Walker says. Intense itching and sores are common but they won’t appear until weeks after you’ve been infected. The mites are usually seen in homes where elderly people live. The itching is treated with several drugs but diagnosing Scabies is very tricky, he adds, because the mites live under the skin. “You have to scrape and scrape until blood comes out and you look for them on a slide,” he adds.