I, a 57 Y.O. male, 5' 10", 280 lbs, have a dark itchy brown spot that looks similar to a bruise on the front, left side of my abdomen, near my navel but is not sore. It's been there for over a year. This area itches mildly due to small colorless bumps and responds to anti itch creams as long as I apply them 2 to 4 times daily, yet it does not heal and the brown spot remains. This particular spot is circular and about 2 to 3 inches in diameter. Although I'm concerned about certain types of skin cancer, my doctor says it's only a bruise. I have applied neosporin, of which seems to heal the area but the itching remains...What are your thoughts?