Teddi Mellencamp has gone under the knife amid her cancer treatment, sharing her experience with fans. “The things that I can tell you, that I don’t need to keep answering, is, of course it was fine with my cancer doctors, that’s why I agreed to do it,” the Real Housewives of Beverly Hills alum, 45, said during a Tuesday, October 13, Instagram Story video. “I was awake. I get my stitches out Thursday. I have immunotherapy Wednesday.” (Immunotherapy is a type of biological therapy that helps the immune system fight cancer, according to the National Cancer Institute.) She add...