question: Hi..my boyfriend woke up yesterday morning with a cluster of 5 dark brown flat spots on his chest. Today 3 of the spots have joined together and all of the spots have opened up into sores so they are now dark brown with holes in the middle which are red and sore. He said it was itchy yesterday but not today. His doctor isn t too concerned as he says if it was skin cancer it would take weeks/months to appear, not overnight. He has been referred to a dermatologist in a few weeks. Is the doctor right in saying that it can t be skin cancer as it doesn t appear overnight? It very much looks like flat moles that are spreading rapidly and are bleeding (small amount) and getting scabby. Thanks.