Teddi Mellencamp’s doctors have found another “abnormal spot” three months after she underwent surgery in her battle with skin cancer. The ‘Real Housewives of Beverly Hills’ star, 42, revealed in October last year she had been diagnosed with stage 2 of the disease and she underwent an operation in December to remove melanoma from her back – but she’s now revealed her team after investigating another suspicious patch on her arm. In a post on Instagram, she shared an update on her surgery scar and shared news from her three-month check-up. She wrote: “What a difference 3 months can make! My scar…